From 5b48ca0f52b5f77d2a4c17ff188ffea85eacc2eb Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 16 Jan 2015 14:27:21 +0200 Subject: [PATCH] drm/i915/dsi: add some constness to vbt panel driver Const is good for you. No functional changes. Signed-off-by: Jani Nikula Reviewed-By: Shobhit Kumar Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c index b0e7327a485f..561ec2981dfd 100644 --- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c +++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c @@ -99,7 +99,8 @@ static inline enum port intel_dsi_seq_port_to_port(u8 port) return port ? PORT_C : PORT_A; } -static u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, u8 *data) +static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, + const u8 *data) { u8 type, byte, mode, vc, seq_port; u16 len; @@ -165,9 +166,9 @@ static u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, u8 *data) return data; } -static u8 *mipi_exec_delay(struct intel_dsi *intel_dsi, u8 *data) +static const u8 *mipi_exec_delay(struct intel_dsi *intel_dsi, const u8 *data) { - u32 delay = *((u32 *) data); + u32 delay = *((const u32 *) data); usleep_range(delay, delay + 10); data += 4; @@ -175,7 +176,7 @@ static u8 *mipi_exec_delay(struct intel_dsi *intel_dsi, u8 *data) return data; } -static u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, u8 *data) +static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data) { u8 gpio, action; u16 function, pad; @@ -208,7 +209,8 @@ static u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, u8 *data) return data; } -typedef u8 * (*fn_mipi_elem_exec)(struct intel_dsi *intel_dsi, u8 *data); +typedef const u8 * (*fn_mipi_elem_exec)(struct intel_dsi *intel_dsi, + const u8 *data); static const fn_mipi_elem_exec exec_elem[] = { NULL, /* reserved */ mipi_exec_send_packet, @@ -232,13 +234,12 @@ static const char * const seq_name[] = { "MIPI_SEQ_DEASSERT_RESET" }; -static void generic_exec_sequence(struct intel_dsi *intel_dsi, char *sequence) +static void generic_exec_sequence(struct intel_dsi *intel_dsi, const u8 *data) { - u8 *data = sequence; fn_mipi_elem_exec mipi_elem_exec; int index; - if (!sequence) + if (!data) return; DRM_DEBUG_DRIVER("Starting MIPI sequence - %s\n", seq_name[*data]); -- 2.20.1