#include <linux/debugfs.h>
#include <linux/gpio.h>
#include <linux/io.h>
+#include <linux/of_device.h>
#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
#include <linux/reset.h>
#include <soc/tegra/pmc.h>
#include "drm.h"
#include "sor.h"
+#define SOR_REKEY 0x38
+
+struct tegra_sor_hdmi_settings {
+ unsigned long frequency;
+
+ u8 vcocap;
+ u8 ichpmp;
+ u8 loadadj;
+ u8 termadj;
+ u8 tx_pu;
+ u8 bg_vref;
+
+ u8 drive_current[4];
+ u8 preemphasis[4];
+};
+
+#if 1
+static const struct tegra_sor_hdmi_settings tegra210_sor_hdmi_defaults[] = {
+ {
+ .frequency = 54000000,
+ .vcocap = 0x0,
+ .ichpmp = 0x1,
+ .loadadj = 0x3,
+ .termadj = 0x9,
+ .tx_pu = 0x10,
+ .bg_vref = 0x8,
+ .drive_current = { 0x33, 0x3a, 0x3a, 0x3a },
+ .preemphasis = { 0x00, 0x00, 0x00, 0x00 },
+ }, {
+ .frequency = 75000000,
+ .vcocap = 0x3,
+ .ichpmp = 0x1,
+ .loadadj = 0x3,
+ .termadj = 0x9,
+ .tx_pu = 0x40,
+ .bg_vref = 0x8,
+ .drive_current = { 0x33, 0x3a, 0x3a, 0x3a },
+ .preemphasis = { 0x00, 0x00, 0x00, 0x00 },
+ }, {
+ .frequency = 150000000,
+ .vcocap = 0x3,
+ .ichpmp = 0x1,
+ .loadadj = 0x3,
+ .termadj = 0x9,
+ .tx_pu = 0x66,
+ .bg_vref = 0x8,
+ .drive_current = { 0x33, 0x3a, 0x3a, 0x3a },
+ .preemphasis = { 0x00, 0x00, 0x00, 0x00 },
+ }, {
+ .frequency = 300000000,
+ .vcocap = 0x3,
+ .ichpmp = 0x1,
+ .loadadj = 0x3,
+ .termadj = 0x9,
+ .tx_pu = 0x66,
+ .bg_vref = 0xa,
+ .drive_current = { 0x33, 0x3f, 0x3f, 0x3f },
+ .preemphasis = { 0x00, 0x17, 0x17, 0x17 },
+ }, {
+ .frequency = 600000000,
+ .vcocap = 0x3,
+ .ichpmp = 0x1,
+ .loadadj = 0x3,
+ .termadj = 0x9,
+ .tx_pu = 0x66,
+ .bg_vref = 0x8,
+ .drive_current = { 0x33, 0x3f, 0x3f, 0x3f },
+ .preemphasis = { 0x00, 0x00, 0x00, 0x00 },
+ },
+};
+#else
+static const struct tegra_sor_hdmi_settings tegra210_sor_hdmi_defaults[] = {
+ {
+ .frequency = 75000000,
+ .vcocap = 0x3,
+ .ichpmp = 0x1,
+ .loadadj = 0x3,
+ .termadj = 0x9,
+ .tx_pu = 0x40,
+ .bg_vref = 0x8,
+ .drive_current = { 0x29, 0x29, 0x29, 0x29 },
+ .preemphasis = { 0x00, 0x00, 0x00, 0x00 },
+ }, {
+ .frequency = 150000000,
+ .vcocap = 0x3,
+ .ichpmp = 0x1,
+ .loadadj = 0x3,
+ .termadj = 0x9,
+ .tx_pu = 0x66,
+ .bg_vref = 0x8,
+ .drive_current = { 0x30, 0x37, 0x37, 0x37 },
+ .preemphasis = { 0x01, 0x02, 0x02, 0x02 },
+ }, {
+ .frequency = 300000000,
+ .vcocap = 0x3,
+ .ichpmp = 0x6,
+ .loadadj = 0x3,
+ .termadj = 0x9,
+ .tx_pu = 0x66,
+ .bg_vref = 0xf,
+ .drive_current = { 0x30, 0x37, 0x37, 0x37 },
+ .preemphasis = { 0x10, 0x3e, 0x3e, 0x3e },
+ }, {
+ .frequency = 600000000,
+ .vcocap = 0x3,
+ .ichpmp = 0xa,
+ .loadadj = 0x3,
+ .termadj = 0xb,
+ .tx_pu = 0x66,
+ .bg_vref = 0xe,
+ .drive_current = { 0x35, 0x3e, 0x3e, 0x3e },
+ .preemphasis = { 0x02, 0x3f, 0x3f, 0x3f },
+ },
+};
+#endif
+
+struct tegra_sor_soc {
+ bool supports_edp;
+ bool supports_lvds;
+ bool supports_hdmi;
+ bool supports_dp;
+
+ const struct tegra_sor_hdmi_settings *settings;
+ unsigned int num_settings;
+};
+
+struct tegra_sor;
+
+struct tegra_sor_ops {
+ const char *name;
+ int (*probe)(struct tegra_sor *sor);
+ int (*remove)(struct tegra_sor *sor);
+};
+
struct tegra_sor {
struct host1x_client client;
struct tegra_output output;
struct device *dev;
+ const struct tegra_sor_soc *soc;
void __iomem *regs;
struct reset_control *rst;
struct drm_info_list *debugfs_files;
struct drm_minor *minor;
struct dentry *debugfs;
+
+ const struct tegra_sor_ops *ops;
+
+ /* for HDMI 2.0 */
+ struct tegra_sor_hdmi_settings *settings;
+ unsigned int num_settings;
+
+ struct regulator *avdd_io_supply;
+ struct regulator *vdd_pll_supply;
+ struct regulator *hdmi_supply;
};
struct tegra_sor_config {
return 0;
}
+static void tegra_sor_dp_term_calibrate(struct tegra_sor *sor)
+{
+ u32 mask = 0x08, adj = 0, value;
+
+ /* enable pad calibration logic */
+ value = tegra_sor_readl(sor, SOR_DP_PADCTL0);
+ value &= ~SOR_DP_PADCTL_PAD_CAL_PD;
+ tegra_sor_writel(sor, value, SOR_DP_PADCTL0);
+
+ value = tegra_sor_readl(sor, SOR_PLL1);
+ value |= SOR_PLL1_TMDS_TERM;
+ tegra_sor_writel(sor, value, SOR_PLL1);
+
+ while (mask) {
+ adj |= mask;
+
+ value = tegra_sor_readl(sor, SOR_PLL1);
+ value &= ~SOR_PLL1_TMDS_TERMADJ_MASK;
+ value |= SOR_PLL1_TMDS_TERMADJ(adj);
+ tegra_sor_writel(sor, value, SOR_PLL1);
+
+ usleep_range(100, 200);
+
+ value = tegra_sor_readl(sor, SOR_PLL1);
+ if (value & SOR_PLL1_TERM_COMPOUT)
+ adj &= ~mask;
+
+ mask >>= 1;
+ }
+
+ value = tegra_sor_readl(sor, SOR_PLL1);
+ value &= ~SOR_PLL1_TMDS_TERMADJ_MASK;
+ value |= SOR_PLL1_TMDS_TERMADJ(adj);
+ tegra_sor_writel(sor, value, SOR_PLL1);
+
+ /* disable pad calibration logic */
+ value = tegra_sor_readl(sor, SOR_DP_PADCTL0);
+ value |= SOR_DP_PADCTL_PAD_CAL_PD;
+ tegra_sor_writel(sor, value, SOR_DP_PADCTL0);
+}
+
static void tegra_sor_super_update(struct tegra_sor *sor)
{
tegra_sor_writel(sor, 0, SOR_SUPER_STATE0);
static int tegra_sor_debugfs_init(struct tegra_sor *sor,
struct drm_minor *minor)
{
+ const char *name = sor->soc->supports_dp ? "sor1" : "sor";
unsigned int i;
int err;
- sor->debugfs = debugfs_create_dir("sor", minor->debugfs_root);
+ sor->debugfs = debugfs_create_dir(name, minor->debugfs_root);
if (!sor->debugfs)
return -ENOMEM;
if (sor->dpaux)
return tegra_dpaux_detect(sor->dpaux);
- return connector_status_unknown;
+ return tegra_output_connector_detect(connector, force);
}
static const struct drm_connector_funcs tegra_sor_connector_funcs = {
clk_disable_unprepare(sor->clk);
}
+#if 0
+static int calc_h_ref_to_sync(const struct drm_display_mode *mode,
+ unsigned int *value)
+{
+ unsigned int hfp, hsw, hbp, a = 0, b;
+
+ hfp = mode->hsync_start - mode->hdisplay;
+ hsw = mode->hsync_end - mode->hsync_start;
+ hbp = mode->htotal - mode->hsync_end;
+
+ pr_info("hfp: %u, hsw: %u, hbp: %u\n", hfp, hsw, hbp);
+
+ b = hfp - 1;
+
+ pr_info("a: %u, b: %u\n", a, b);
+ pr_info("a + hsw + hbp = %u\n", a + hsw + hbp);
+
+ if (a + hsw + hbp <= 11) {
+ a = 1 + 11 - hsw - hbp;
+ pr_info("a: %u\n", a);
+ }
+
+ if (a > b)
+ return -EINVAL;
+
+ if (hsw < 1)
+ return -EINVAL;
+
+ if (mode->hdisplay < 16)
+ return -EINVAL;
+
+ if (value) {
+ if (b > a && a % 2)
+ *value = a + 1;
+ else
+ *value = a;
+ }
+
+ return 0;
+}
+#endif
+
static void tegra_sor_edp_enable(struct drm_encoder *encoder)
{
struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
return 0;
}
-static const struct drm_encoder_helper_funcs tegra_sor_edp_helper_funcs = {
+static const struct drm_encoder_helper_funcs tegra_sor_edp_helpers = {
.disable = tegra_sor_edp_disable,
.enable = tegra_sor_edp_enable,
.atomic_check = tegra_sor_encoder_atomic_check,
};
+static inline u32 tegra_sor_hdmi_subpack(const u8 *ptr, size_t size)
+{
+ u32 value = 0;
+ size_t i;
+
+ for (i = size; i > 0; i--)
+ value = (value << 8) | ptr[i - 1];
+
+ return value;
+}
+
+static void tegra_sor_hdmi_write_infopack(struct tegra_sor *sor,
+ const void *data, size_t size)
+{
+ const u8 *ptr = data;
+ unsigned long offset;
+ size_t i, j;
+ u32 value;
+
+ switch (ptr[0]) {
+ case HDMI_INFOFRAME_TYPE_AVI:
+ offset = SOR_HDMI_AVI_INFOFRAME_HEADER;
+ break;
+
+ case HDMI_INFOFRAME_TYPE_AUDIO:
+ offset = SOR_HDMI_AUDIO_INFOFRAME_HEADER;
+ break;
+
+ case HDMI_INFOFRAME_TYPE_VENDOR:
+ offset = SOR_HDMI_VSI_INFOFRAME_HEADER;
+ break;
+
+ default:
+ dev_err(sor->dev, "unsupported infoframe type: %02x\n",
+ ptr[0]);
+ return;
+ }
+
+ value = INFOFRAME_HEADER_TYPE(ptr[0]) |
+ INFOFRAME_HEADER_VERSION(ptr[1]) |
+ INFOFRAME_HEADER_LEN(ptr[2]);
+ tegra_sor_writel(sor, value, offset);
+ offset++;
+
+ /*
+ * Each subpack contains 7 bytes, divided into:
+ * - subpack_low: bytes 0 - 3
+ * - subpack_high: bytes 4 - 6 (with byte 7 padded to 0x00)
+ */
+ for (i = 3, j = 0; i < size; i += 7, j += 8) {
+ size_t rem = size - i, num = min_t(size_t, rem, 4);
+
+ value = tegra_sor_hdmi_subpack(&ptr[i], num);
+ tegra_sor_writel(sor, value, offset++);
+
+ num = min_t(size_t, rem - num, 3);
+
+ value = tegra_sor_hdmi_subpack(&ptr[i + 4], num);
+ tegra_sor_writel(sor, value, offset++);
+ }
+}
+
+static int
+tegra_sor_hdmi_setup_avi_infoframe(struct tegra_sor *sor,
+ const struct drm_display_mode *mode)
+{
+ u8 buffer[HDMI_INFOFRAME_SIZE(AVI)];
+ struct hdmi_avi_infoframe frame;
+ u32 value;
+ int err;
+
+ /* disable AVI infoframe */
+ value = tegra_sor_readl(sor, SOR_HDMI_AVI_INFOFRAME_CTRL);
+ value &= ~INFOFRAME_CTRL_SINGLE;
+ value &= ~INFOFRAME_CTRL_OTHER;
+ value &= ~INFOFRAME_CTRL_ENABLE;
+ tegra_sor_writel(sor, value, SOR_HDMI_AVI_INFOFRAME_CTRL);
+
+ err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
+ if (err < 0) {
+ dev_err(sor->dev, "failed to setup AVI infoframe: %d\n", err);
+ return err;
+ }
+
+ err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
+ if (err < 0) {
+ dev_err(sor->dev, "failed to pack AVI infoframe: %d\n", err);
+ return err;
+ }
+
+ tegra_sor_hdmi_write_infopack(sor, buffer, err);
+
+ /* enable AVI infoframe */
+ value = tegra_sor_readl(sor, SOR_HDMI_AVI_INFOFRAME_CTRL);
+ value |= INFOFRAME_CTRL_CHECKSUM_ENABLE;
+ value |= INFOFRAME_CTRL_ENABLE;
+ tegra_sor_writel(sor, value, SOR_HDMI_AVI_INFOFRAME_CTRL);
+
+ return 0;
+}
+
+static void tegra_sor_hdmi_disable_audio_infoframe(struct tegra_sor *sor)
+{
+ u32 value;
+
+ value = tegra_sor_readl(sor, SOR_HDMI_AUDIO_INFOFRAME_CTRL);
+ value &= ~INFOFRAME_CTRL_ENABLE;
+ tegra_sor_writel(sor, value, SOR_HDMI_AUDIO_INFOFRAME_CTRL);
+}
+
+static struct tegra_sor_hdmi_settings *
+tegra_sor_hdmi_find_settings(struct tegra_sor *sor, unsigned long frequency)
+{
+ unsigned int i;
+
+ for (i = 0; i < sor->num_settings; i++)
+ if (frequency <= sor->settings[i].frequency)
+ return &sor->settings[i];
+
+ return NULL;
+}
+
+static void tegra_sor_hdmi_disable(struct drm_encoder *encoder)
+{
+ struct tegra_output *output = encoder_to_output(encoder);
+ struct tegra_dc *dc = to_tegra_dc(encoder->crtc);
+ struct tegra_sor *sor = to_sor(output);
+ u32 value;
+ int err;
+
+ err = tegra_sor_detach(sor);
+ if (err < 0)
+ dev_err(sor->dev, "failed to detach SOR: %d\n", err);
+
+ tegra_sor_writel(sor, 0, SOR_STATE1);
+ tegra_sor_update(sor);
+
+ /* disable display to SOR clock */
+ value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
+ value &= ~SOR1_TIMING_CYA;
+ value &= ~SOR1_ENABLE;
+ tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
+
+ tegra_dc_commit(dc);
+
+ err = tegra_sor_power_down(sor);
+ if (err < 0)
+ dev_err(sor->dev, "failed to power down SOR: %d\n", err);
+
+ err = tegra_io_rail_power_off(TEGRA_IO_RAIL_HDMI);
+ if (err < 0)
+ dev_err(sor->dev, "failed to power off HDMI rail: %d\n", err);
+
+ reset_control_assert(sor->rst);
+ usleep_range(1000, 2000);
+ clk_disable_unprepare(sor->clk);
+}
+
+static void tegra_sor_hdmi_enable(struct drm_encoder *encoder)
+{
+ struct tegra_output *output = encoder_to_output(encoder);
+ unsigned int h_ref_to_sync = 1, pulse_start, max_ac;
+ struct tegra_dc *dc = to_tegra_dc(encoder->crtc);
+ unsigned int vbe, vse, hbe, hse, vbs, hbs, div;
+ struct tegra_sor_hdmi_settings *settings;
+ struct tegra_sor *sor = to_sor(output);
+ struct drm_display_mode *mode;
+ struct drm_display_info *info;
+ u32 value;
+ int err;
+
+ mode = &encoder->crtc->state->adjusted_mode;
+ info = &output->connector.display_info;
+
+ err = clk_prepare_enable(sor->clk);
+ if (err < 0)
+ dev_err(sor->dev, "failed to enable clock: %d\n", err);
+
+ usleep_range(1000, 2000);
+
+ reset_control_deassert(sor->rst);
+
+ err = clk_set_parent(sor->clk, sor->clk_safe);
+ if (err < 0)
+ dev_err(sor->dev, "failed to set safe parent clock: %d\n", err);
+
+ div = clk_get_rate(sor->clk) / 1000000 * 4;
+
+ err = tegra_io_rail_power_on(TEGRA_IO_RAIL_HDMI);
+ if (err < 0)
+ dev_err(sor->dev, "failed to power on HDMI rail: %d\n", err);
+
+ usleep_range(20, 100);
+
+ value = tegra_sor_readl(sor, SOR_PLL2);
+ value &= ~SOR_PLL2_BANDGAP_POWERDOWN;
+ tegra_sor_writel(sor, value, SOR_PLL2);
+
+ usleep_range(20, 100);
+
+ value = tegra_sor_readl(sor, SOR_PLL3);
+ value &= ~SOR_PLL3_PLL_VDD_MODE_3V3;
+ tegra_sor_writel(sor, value, SOR_PLL3);
+
+ value = tegra_sor_readl(sor, SOR_PLL0);
+ value &= ~SOR_PLL0_VCOPD;
+ value &= ~SOR_PLL0_PWR;
+ tegra_sor_writel(sor, value, SOR_PLL0);
+
+ value = tegra_sor_readl(sor, SOR_PLL2);
+ value &= ~SOR_PLL2_SEQ_PLLCAPPD_ENFORCE;
+ tegra_sor_writel(sor, value, SOR_PLL2);
+
+ usleep_range(200, 400);
+
+ value = tegra_sor_readl(sor, SOR_PLL2);
+ value &= ~SOR_PLL2_POWERDOWN_OVERRIDE;
+ value &= ~SOR_PLL2_PORT_POWERDOWN;
+ tegra_sor_writel(sor, value, SOR_PLL2);
+
+ usleep_range(20, 100);
+
+ value = tegra_sor_readl(sor, SOR_DP_PADCTL0);
+ value |= SOR_DP_PADCTL_PD_TXD_3 | SOR_DP_PADCTL_PD_TXD_0 |
+ SOR_DP_PADCTL_PD_TXD_1 | SOR_DP_PADCTL_PD_TXD_2;
+ tegra_sor_writel(sor, value, SOR_DP_PADCTL0);
+
+ while (true) {
+ value = tegra_sor_readl(sor, SOR_LANE_SEQ_CTL);
+ if ((value & SOR_LANE_SEQ_CTL_STATE_BUSY) == 0)
+ break;
+
+ usleep_range(250, 1000);
+ }
+
+ value = SOR_LANE_SEQ_CTL_TRIGGER | SOR_LANE_SEQ_CTL_SEQUENCE_DOWN |
+ SOR_LANE_SEQ_CTL_POWER_STATE_UP | SOR_LANE_SEQ_CTL_DELAY(5);
+ tegra_sor_writel(sor, value, SOR_LANE_SEQ_CTL);
+
+ while (true) {
+ value = tegra_sor_readl(sor, SOR_LANE_SEQ_CTL);
+ if ((value & SOR_LANE_SEQ_CTL_TRIGGER) == 0)
+ break;
+
+ usleep_range(250, 1000);
+ }
+
+ value = tegra_sor_readl(sor, SOR_CLK_CNTRL);
+ value &= ~SOR_CLK_CNTRL_DP_LINK_SPEED_MASK;
+ value &= ~SOR_CLK_CNTRL_DP_CLK_SEL_MASK;
+
+ if (mode->clock < 340000)
+ value |= SOR_CLK_CNTRL_DP_LINK_SPEED_G2_70;
+ else
+ value |= SOR_CLK_CNTRL_DP_LINK_SPEED_G5_40;
+
+ value |= SOR_CLK_CNTRL_DP_CLK_SEL_SINGLE_PCLK;
+ tegra_sor_writel(sor, value, SOR_CLK_CNTRL);
+
+ value = tegra_sor_readl(sor, SOR_DP_SPARE0);
+ value |= SOR_DP_SPARE_DISP_VIDEO_PREAMBLE;
+ value &= ~SOR_DP_SPARE_PANEL_INTERNAL;
+ value |= SOR_DP_SPARE_SEQ_ENABLE;
+ tegra_sor_writel(sor, value, SOR_DP_SPARE0);
+
+ value = SOR_SEQ_CTL_PU_PC(0) | SOR_SEQ_CTL_PU_PC_ALT(0) |
+ SOR_SEQ_CTL_PD_PC(8) | SOR_SEQ_CTL_PD_PC_ALT(8);
+ tegra_sor_writel(sor, value, SOR_SEQ_CTL);
+
+ value = SOR_SEQ_INST_DRIVE_PWM_OUT_LO | SOR_SEQ_INST_HALT |
+ SOR_SEQ_INST_WAIT_VSYNC | SOR_SEQ_INST_WAIT(1);
+ tegra_sor_writel(sor, value, SOR_SEQ_INST(0));
+ tegra_sor_writel(sor, value, SOR_SEQ_INST(8));
+
+ /* program the reference clock */
+ value = SOR_REFCLK_DIV_INT(div) | SOR_REFCLK_DIV_FRAC(div);
+ tegra_sor_writel(sor, value, SOR_REFCLK);
+
+ /* XXX don't hardcode */
+ value = SOR_XBAR_CTRL_LINK1_XSEL(4, 4) |
+ SOR_XBAR_CTRL_LINK1_XSEL(3, 3) |
+ SOR_XBAR_CTRL_LINK1_XSEL(2, 2) |
+ SOR_XBAR_CTRL_LINK1_XSEL(1, 1) |
+ SOR_XBAR_CTRL_LINK1_XSEL(0, 0) |
+ SOR_XBAR_CTRL_LINK0_XSEL(4, 4) |
+ SOR_XBAR_CTRL_LINK0_XSEL(3, 3) |
+ SOR_XBAR_CTRL_LINK0_XSEL(2, 0) |
+ SOR_XBAR_CTRL_LINK0_XSEL(1, 1) |
+ SOR_XBAR_CTRL_LINK0_XSEL(0, 2);
+ tegra_sor_writel(sor, value, SOR_XBAR_CTRL);
+
+ tegra_sor_writel(sor, 0x00000000, SOR_XBAR_POL);
+
+ err = clk_set_parent(sor->clk, sor->clk_parent);
+ if (err < 0)
+ dev_err(sor->dev, "failed to set parent clock: %d\n", err);
+
+ value = SOR_INPUT_CONTROL_HDMI_SRC_SELECT(dc->pipe);
+
+ /* XXX is this the proper check? */
+ if (mode->clock < 75000)
+ value |= SOR_INPUT_CONTROL_ARM_VIDEO_RANGE_LIMITED;
+
+ tegra_sor_writel(sor, value, SOR_INPUT_CONTROL);
+
+ max_ac = ((mode->htotal - mode->hdisplay) - SOR_REKEY - 18) / 32;
+
+ value = SOR_HDMI_CTRL_ENABLE | SOR_HDMI_CTRL_MAX_AC_PACKET(max_ac) |
+ SOR_HDMI_CTRL_AUDIO_LAYOUT | SOR_HDMI_CTRL_REKEY(SOR_REKEY);
+ tegra_sor_writel(sor, value, SOR_HDMI_CTRL);
+
+ /* H_PULSE2 setup */
+ pulse_start = h_ref_to_sync + (mode->hsync_end - mode->hsync_start) +
+ (mode->htotal - mode->hsync_end) - 10;
+
+ value = PULSE_LAST_END_A | PULSE_QUAL_VACTIVE |
+ PULSE_POLARITY_HIGH | PULSE_MODE_NORMAL;
+ tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_CONTROL);
+
+ value = PULSE_END(pulse_start + 8) | PULSE_START(pulse_start);
+ tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_POSITION_A);
+
+ value = tegra_dc_readl(dc, DC_DISP_DISP_SIGNAL_OPTIONS0);
+ value |= H_PULSE2_ENABLE;
+ tegra_dc_writel(dc, value, DC_DISP_DISP_SIGNAL_OPTIONS0);
+
+ /* infoframe setup */
+ err = tegra_sor_hdmi_setup_avi_infoframe(sor, mode);
+ if (err < 0)
+ dev_err(sor->dev, "failed to setup AVI infoframe: %d\n", err);
+
+ /* XXX HDMI audio support not implemented yet */
+ tegra_sor_hdmi_disable_audio_infoframe(sor);
+
+ /* use single TMDS protocol */
+ value = tegra_sor_readl(sor, SOR_STATE1);
+ value &= ~SOR_STATE_ASY_PROTOCOL_MASK;
+ value |= SOR_STATE_ASY_PROTOCOL_SINGLE_TMDS_A;
+ tegra_sor_writel(sor, value, SOR_STATE1);
+
+ /* power up pad calibration */
+ value = tegra_sor_readl(sor, SOR_DP_PADCTL0);
+ value &= ~SOR_DP_PADCTL_PAD_CAL_PD;
+ tegra_sor_writel(sor, value, SOR_DP_PADCTL0);
+
+ /* production settings */
+ settings = tegra_sor_hdmi_find_settings(sor, mode->clock * 1000);
+ if (IS_ERR(settings)) {
+ dev_err(sor->dev, "no settings for pixel clock %d Hz: %ld\n",
+ mode->clock * 1000, PTR_ERR(settings));
+ return;
+ }
+
+ value = tegra_sor_readl(sor, SOR_PLL0);
+ value &= ~SOR_PLL0_ICHPMP_MASK;
+ value &= ~SOR_PLL0_VCOCAP_MASK;
+ value |= SOR_PLL0_ICHPMP(settings->ichpmp);
+ value |= SOR_PLL0_VCOCAP(settings->vcocap);
+ tegra_sor_writel(sor, value, SOR_PLL0);
+
+ tegra_sor_dp_term_calibrate(sor);
+
+ value = tegra_sor_readl(sor, SOR_PLL1);
+ value &= ~SOR_PLL1_LOADADJ_MASK;
+ value |= SOR_PLL1_LOADADJ(settings->loadadj);
+ tegra_sor_writel(sor, value, SOR_PLL1);
+
+ value = tegra_sor_readl(sor, SOR_PLL3);
+ value &= ~SOR_PLL3_BG_VREF_LEVEL_MASK;
+ value |= SOR_PLL3_BG_VREF_LEVEL(settings->bg_vref);
+ tegra_sor_writel(sor, value, SOR_PLL3);
+
+ value = settings->drive_current[0] << 24 |
+ settings->drive_current[1] << 16 |
+ settings->drive_current[2] << 8 |
+ settings->drive_current[3] << 0;
+ tegra_sor_writel(sor, value, SOR_LANE_DRIVE_CURRENT0);
+
+ value = settings->preemphasis[0] << 24 |
+ settings->preemphasis[1] << 16 |
+ settings->preemphasis[2] << 8 |
+ settings->preemphasis[3] << 0;
+ tegra_sor_writel(sor, value, SOR_LANE_PREEMPHASIS0);
+
+ value = tegra_sor_readl(sor, SOR_DP_PADCTL0);
+ value &= ~SOR_DP_PADCTL_TX_PU_MASK;
+ value |= SOR_DP_PADCTL_TX_PU_ENABLE;
+ value |= SOR_DP_PADCTL_TX_PU(settings->tx_pu);
+ tegra_sor_writel(sor, value, SOR_DP_PADCTL0);
+
+ /* power down pad calibration */
+ value = tegra_sor_readl(sor, SOR_DP_PADCTL0);
+ value |= SOR_DP_PADCTL_PAD_CAL_PD;
+ tegra_sor_writel(sor, value, SOR_DP_PADCTL0);
+
+ /* miscellaneous display controller settings */
+ value = VSYNC_H_POSITION(1);
+ tegra_dc_writel(dc, value, DC_DISP_DISP_TIMING_OPTIONS);
+
+ value = tegra_dc_readl(dc, DC_DISP_DISP_COLOR_CONTROL);
+ value &= ~DITHER_CONTROL_MASK;
+ value &= ~BASE_COLOR_SIZE_MASK;
+
+ switch (info->bpc) {
+ case 6:
+ value |= BASE_COLOR_SIZE_666;
+ break;
+
+ case 8:
+ value |= BASE_COLOR_SIZE_888;
+ break;
+
+ default:
+ WARN(1, "%u bits-per-color not supported\n", info->bpc);
+ break;
+ }
+
+ tegra_dc_writel(dc, value, DC_DISP_DISP_COLOR_CONTROL);
+
+ err = tegra_sor_power_up(sor, 250);
+ if (err < 0)
+ dev_err(sor->dev, "failed to power up SOR: %d\n", err);
+
+ /* configure mode */
+ value = tegra_sor_readl(sor, SOR_STATE1);
+ value &= ~SOR_STATE_ASY_PIXELDEPTH_MASK;
+ value &= ~SOR_STATE_ASY_CRC_MODE_MASK;
+ value &= ~SOR_STATE_ASY_OWNER_MASK;
+
+ value |= SOR_STATE_ASY_CRC_MODE_COMPLETE |
+ SOR_STATE_ASY_OWNER(dc->pipe + 1);
+
+ if (mode->flags & DRM_MODE_FLAG_PHSYNC)
+ value &= ~SOR_STATE_ASY_HSYNCPOL;
+
+ if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+ value |= SOR_STATE_ASY_HSYNCPOL;
+
+ if (mode->flags & DRM_MODE_FLAG_PVSYNC)
+ value &= ~SOR_STATE_ASY_VSYNCPOL;
+
+ if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+ value |= SOR_STATE_ASY_VSYNCPOL;
+
+ switch (info->bpc) {
+ case 8:
+ value |= SOR_STATE_ASY_PIXELDEPTH_BPP_24_444;
+ break;
+
+ case 6:
+ value |= SOR_STATE_ASY_PIXELDEPTH_BPP_18_444;
+ break;
+
+ default:
+ BUG();
+ break;
+ }
+
+ tegra_sor_writel(sor, value, SOR_STATE1);
+
+ value = tegra_sor_readl(sor, SOR_HEAD_STATE0(dc->pipe));
+ value &= ~SOR_HEAD_STATE_RANGECOMPRESS_MASK;
+ value &= ~SOR_HEAD_STATE_DYNRANGE_MASK;
+ tegra_sor_writel(sor, value, SOR_HEAD_STATE0(dc->pipe));
+
+ value = tegra_sor_readl(sor, SOR_HEAD_STATE0(dc->pipe));
+ value &= ~SOR_HEAD_STATE_COLORSPACE_MASK;
+ value |= SOR_HEAD_STATE_COLORSPACE_RGB;
+ tegra_sor_writel(sor, value, SOR_HEAD_STATE0(dc->pipe));
+
+ /*
+ * TODO: The video timing programming below doesn't seem to match the
+ * register definitions.
+ */
+
+ value = ((mode->vtotal & 0x7fff) << 16) | (mode->htotal & 0x7fff);
+ tegra_sor_writel(sor, value, SOR_HEAD_STATE1(dc->pipe));
+
+ /* sync end = sync width - 1 */
+ vse = mode->vsync_end - mode->vsync_start - 1;
+ hse = mode->hsync_end - mode->hsync_start - 1;
+
+ value = ((vse & 0x7fff) << 16) | (hse & 0x7fff);
+ tegra_sor_writel(sor, value, SOR_HEAD_STATE2(dc->pipe));
+
+ /* blank end = sync end + back porch */
+ vbe = vse + (mode->vtotal - mode->vsync_end);
+ hbe = hse + (mode->htotal - mode->hsync_end);
+
+ value = ((vbe & 0x7fff) << 16) | (hbe & 0x7fff);
+ tegra_sor_writel(sor, value, SOR_HEAD_STATE3(dc->pipe));
+
+ /* blank start = blank end + active */
+ vbs = vbe + mode->vdisplay;
+ hbs = hbe + mode->hdisplay;
+
+ value = ((vbs & 0x7fff) << 16) | (hbs & 0x7fff);
+ tegra_sor_writel(sor, value, SOR_HEAD_STATE4(dc->pipe));
+
+ tegra_sor_writel(sor, 0x1, SOR_HEAD_STATE5(dc->pipe));
+
+ tegra_sor_update(sor);
+
+ err = tegra_sor_attach(sor);
+ if (err < 0)
+ dev_err(sor->dev, "failed to attach SOR: %d\n", err);
+
+ /* enable display to SOR clock and generate HDMI preamble */
+ value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
+ value |= SOR1_ENABLE | SOR1_TIMING_CYA;
+ tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
+
+ tegra_dc_commit(dc);
+
+ err = tegra_sor_wakeup(sor);
+ if (err < 0)
+ dev_err(sor->dev, "failed to wakeup SOR: %d\n", err);
+}
+
+static const struct drm_encoder_helper_funcs tegra_sor_hdmi_helpers = {
+ .disable = tegra_sor_hdmi_disable,
+ .enable = tegra_sor_hdmi_enable,
+ .atomic_check = tegra_sor_encoder_atomic_check,
+};
+
static int tegra_sor_init(struct host1x_client *client)
{
struct drm_device *drm = dev_get_drvdata(client->parent);
+ const struct drm_encoder_helper_funcs *helpers = NULL;
struct tegra_sor *sor = host1x_client_to_sor(client);
+ int connector = DRM_MODE_CONNECTOR_Unknown;
+ int encoder = DRM_MODE_ENCODER_NONE;
int err;
- if (!sor->dpaux)
- return -ENODEV;
+ if (!sor->dpaux) {
+ if (sor->soc->supports_hdmi) {
+ connector = DRM_MODE_CONNECTOR_HDMIA;
+ encoder = DRM_MODE_ENCODER_TMDS;
+ helpers = &tegra_sor_hdmi_helpers;
+ } else if (sor->soc->supports_lvds) {
+ connector = DRM_MODE_CONNECTOR_LVDS;
+ encoder = DRM_MODE_ENCODER_LVDS;
+ }
+ } else {
+ if (sor->soc->supports_edp) {
+ connector = DRM_MODE_CONNECTOR_eDP;
+ encoder = DRM_MODE_ENCODER_TMDS;
+ helpers = &tegra_sor_edp_helpers;
+ } else if (sor->soc->supports_dp) {
+ connector = DRM_MODE_CONNECTOR_DisplayPort;
+ encoder = DRM_MODE_ENCODER_TMDS;
+ }
+ }
sor->output.dev = sor->dev;
drm_connector_init(drm, &sor->output.connector,
&tegra_sor_connector_funcs,
- DRM_MODE_CONNECTOR_eDP);
+ connector);
drm_connector_helper_add(&sor->output.connector,
&tegra_sor_connector_helper_funcs);
sor->output.connector.dpms = DRM_MODE_DPMS_OFF;
drm_encoder_init(drm, &sor->output.encoder, &tegra_sor_encoder_funcs,
- DRM_MODE_ENCODER_TMDS);
- drm_encoder_helper_add(&sor->output.encoder,
- &tegra_sor_edp_helper_funcs);
+ encoder);
+ drm_encoder_helper_add(&sor->output.encoder, helpers);
drm_mode_connector_attach_encoder(&sor->output.connector,
&sor->output.encoder);
.exit = tegra_sor_exit,
};
+static const struct tegra_sor_ops tegra_sor_edp_ops = {
+ .name = "eDP",
+};
+
+static int tegra_sor_hdmi_probe(struct tegra_sor *sor)
+{
+ int err;
+
+ sor->avdd_io_supply = devm_regulator_get(sor->dev, "avdd-io");
+ if (IS_ERR(sor->avdd_io_supply)) {
+ dev_err(sor->dev, "cannot get AVDD I/O supply: %ld\n",
+ PTR_ERR(sor->avdd_io_supply));
+ return PTR_ERR(sor->avdd_io_supply);
+ }
+
+ err = regulator_enable(sor->avdd_io_supply);
+ if (err < 0) {
+ dev_err(sor->dev, "failed to enable AVDD I/O supply: %d\n",
+ err);
+ return err;
+ }
+
+ sor->vdd_pll_supply = devm_regulator_get(sor->dev, "vdd-pll");
+ if (IS_ERR(sor->vdd_pll_supply)) {
+ dev_err(sor->dev, "cannot get VDD PLL supply: %ld\n",
+ PTR_ERR(sor->vdd_pll_supply));
+ return PTR_ERR(sor->vdd_pll_supply);
+ }
+
+ err = regulator_enable(sor->vdd_pll_supply);
+ if (err < 0) {
+ dev_err(sor->dev, "failed to enable VDD PLL supply: %d\n",
+ err);
+ return err;
+ }
+
+ sor->hdmi_supply = devm_regulator_get(sor->dev, "hdmi");
+ if (IS_ERR(sor->hdmi_supply)) {
+ dev_err(sor->dev, "cannot get HDMI supply: %ld\n",
+ PTR_ERR(sor->hdmi_supply));
+ return PTR_ERR(sor->hdmi_supply);
+ }
+
+ err = regulator_enable(sor->hdmi_supply);
+ if (err < 0) {
+ dev_err(sor->dev, "failed to enable HDMI supply: %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static int tegra_sor_hdmi_remove(struct tegra_sor *sor)
+{
+ regulator_disable(sor->hdmi_supply);
+ regulator_disable(sor->vdd_pll_supply);
+ regulator_disable(sor->avdd_io_supply);
+
+ return 0;
+}
+
+static const struct tegra_sor_ops tegra_sor_hdmi_ops = {
+ .name = "HDMI",
+ .probe = tegra_sor_hdmi_probe,
+ .remove = tegra_sor_hdmi_remove,
+};
+
+static const struct tegra_sor_soc tegra124_sor = {
+ .supports_edp = true,
+ .supports_lvds = true,
+ .supports_hdmi = false,
+ .supports_dp = false,
+};
+
+static const struct tegra_sor_soc tegra210_sor = {
+ .supports_edp = true,
+ .supports_lvds = false,
+ .supports_hdmi = false,
+ .supports_dp = false,
+};
+
+static const struct tegra_sor_soc tegra210_sor1 = {
+ .supports_edp = false,
+ .supports_lvds = false,
+ .supports_hdmi = true,
+ .supports_dp = true,
+
+ .num_settings = ARRAY_SIZE(tegra210_sor_hdmi_defaults),
+ .settings = tegra210_sor_hdmi_defaults,
+};
+
+static const struct of_device_id tegra_sor_of_match[] = {
+ { .compatible = "nvidia,tegra210-sor1", .data = &tegra210_sor1 },
+ { .compatible = "nvidia,tegra210-sor", .data = &tegra210_sor },
+ { .compatible = "nvidia,tegra124-sor", .data = &tegra124_sor },
+ { },
+};
+MODULE_DEVICE_TABLE(of, tegra_sor_of_match);
+
static int tegra_sor_probe(struct platform_device *pdev)
{
+ const struct of_device_id *match;
struct device_node *np;
struct tegra_sor *sor;
struct resource *regs;
int err;
+ match = of_match_device(tegra_sor_of_match, &pdev->dev);
+
sor = devm_kzalloc(&pdev->dev, sizeof(*sor), GFP_KERNEL);
if (!sor)
return -ENOMEM;
sor->output.dev = sor->dev = &pdev->dev;
+ sor->soc = match->data;
+
+ sor->settings = devm_kmemdup(&pdev->dev, sor->soc->settings,
+ sor->soc->num_settings *
+ sizeof(*sor->settings),
+ GFP_KERNEL);
+ if (!sor->settings)
+ return -ENOMEM;
+
+ sor->num_settings = sor->soc->num_settings;
np = of_parse_phandle(pdev->dev.of_node, "nvidia,dpaux", 0);
if (np) {
return -EPROBE_DEFER;
}
+ if (!sor->dpaux) {
+ if (sor->soc->supports_hdmi) {
+ sor->ops = &tegra_sor_hdmi_ops;
+ } else if (sor->soc->supports_lvds) {
+ dev_err(&pdev->dev, "LVDS not supported yet\n");
+ return -ENODEV;
+ } else {
+ dev_err(&pdev->dev, "unknown (non-DP) support\n");
+ return -ENODEV;
+ }
+ } else {
+ if (sor->soc->supports_edp) {
+ sor->ops = &tegra_sor_edp_ops;
+ } else if (sor->soc->supports_dp) {
+ dev_err(&pdev->dev, "DisplayPort not supported yet\n");
+ return -ENODEV;
+ } else {
+ dev_err(&pdev->dev, "unknown (DP) support\n");
+ return -ENODEV;
+ }
+ }
+
err = tegra_output_probe(&sor->output);
if (err < 0) {
dev_err(&pdev->dev, "failed to probe output: %d\n", err);
return err;
}
+ if (sor->ops && sor->ops->probe) {
+ err = sor->ops->probe(sor);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to probe %s: %d\n",
+ sor->ops->name, err);
+ goto output;
+ }
+ }
+
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
sor->regs = devm_ioremap_resource(&pdev->dev, regs);
- if (IS_ERR(sor->regs))
- return PTR_ERR(sor->regs);
+ if (IS_ERR(sor->regs)) {
+ err = PTR_ERR(sor->regs);
+ goto remove;
+ }
sor->rst = devm_reset_control_get(&pdev->dev, "sor");
if (IS_ERR(sor->rst)) {
- dev_err(&pdev->dev, "failed to get reset control: %ld\n",
- PTR_ERR(sor->rst));
- return PTR_ERR(sor->rst);
+ err = PTR_ERR(sor->rst);
+ dev_err(&pdev->dev, "failed to get reset control: %d\n", err);
+ goto remove;
}
sor->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(sor->clk)) {
- dev_err(&pdev->dev, "failed to get module clock: %ld\n",
- PTR_ERR(sor->clk));
- return PTR_ERR(sor->clk);
+ err = PTR_ERR(sor->clk);
+ dev_err(&pdev->dev, "failed to get module clock: %d\n", err);
+ goto remove;
}
sor->clk_parent = devm_clk_get(&pdev->dev, "parent");
if (IS_ERR(sor->clk_parent)) {
- dev_err(&pdev->dev, "failed to get parent clock: %ld\n",
- PTR_ERR(sor->clk_parent));
- return PTR_ERR(sor->clk_parent);
+ err = PTR_ERR(sor->clk_parent);
+ dev_err(&pdev->dev, "failed to get parent clock: %d\n", err);
+ goto remove;
}
sor->clk_safe = devm_clk_get(&pdev->dev, "safe");
if (IS_ERR(sor->clk_safe)) {
- dev_err(&pdev->dev, "failed to get safe clock: %ld\n",
- PTR_ERR(sor->clk_safe));
- return PTR_ERR(sor->clk_safe);
+ err = PTR_ERR(sor->clk_safe);
+ dev_err(&pdev->dev, "failed to get safe clock: %d\n", err);
+ goto remove;
}
sor->clk_dp = devm_clk_get(&pdev->dev, "dp");
if (IS_ERR(sor->clk_dp)) {
- dev_err(&pdev->dev, "failed to get DP clock: %ld\n",
- PTR_ERR(sor->clk_dp));
- return PTR_ERR(sor->clk_dp);
+ err = PTR_ERR(sor->clk_dp);
+ dev_err(&pdev->dev, "failed to get DP clock: %d\n", err);
+ goto remove;
}
INIT_LIST_HEAD(&sor->client.list);
if (err < 0) {
dev_err(&pdev->dev, "failed to register host1x client: %d\n",
err);
- return err;
+ goto remove;
}
platform_set_drvdata(pdev, sor);
return 0;
+
+remove:
+ if (sor->ops && sor->ops->remove)
+ sor->ops->remove(sor);
+output:
+ tegra_output_remove(&sor->output);
+ return err;
}
static int tegra_sor_remove(struct platform_device *pdev)
return err;
}
+ if (sor->ops && sor->ops->remove) {
+ err = sor->ops->remove(sor);
+ if (err < 0)
+ dev_err(&pdev->dev, "failed to remove SOR: %d\n", err);
+ }
+
tegra_output_remove(&sor->output);
return 0;
}
-static const struct of_device_id tegra_sor_of_match[] = {
- { .compatible = "nvidia,tegra124-sor", },
- { .compatible = "nvidia,tegra210-sor", },
- { },
-};
-MODULE_DEVICE_TABLE(of, tegra_sor_of_match);
-
struct platform_driver tegra_sor_driver = {
.driver = {
.name = "tegra-sor",
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff