From: Russell King Date: Fri, 25 Apr 2014 11:57:18 +0000 (+0100) Subject: mmc: sdhci: move FSL ESDHC reset handling quirk into esdhc code X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0718e59ae259f7c48155b4e852d8b0632d59028e;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git mmc: sdhci: move FSL ESDHC reset handling quirk into esdhc code The Freescale esdhc driver is the only driver which needs the interrupt registers restored after a reset. Move this quirk to be part of the ESDHC driver implementation. Signed-off-by: Russell King Tested-by: Markus Pargmann Tested-by: Stephen Warren Signed-off-by: Ulf Hansson Signed-off-by: Chris Ball --- diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index b1d74fa33c5f..812c5772d900 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -876,6 +876,14 @@ static int esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs) return esdhc_change_pinstate(host, uhs); } +static void esdhc_reset(struct sdhci_host *host, u8 mask) +{ + sdhci_reset(host, mask); + + sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); + sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); +} + static struct sdhci_ops sdhci_esdhc_ops = { .read_l = esdhc_readl_le, .read_w = esdhc_readw_le, @@ -888,7 +896,7 @@ static struct sdhci_ops sdhci_esdhc_ops = { .get_ro = esdhc_pltfm_get_ro, .set_bus_width = esdhc_pltfm_set_bus_width, .set_uhs_signaling = esdhc_set_uhs_signaling, - .reset = sdhci_reset, + .reset = esdhc_reset, }; static const struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = { diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h index a7d9f95a7b03..de69bddc3afc 100644 --- a/drivers/mmc/host/sdhci-esdhc.h +++ b/drivers/mmc/host/sdhci-esdhc.h @@ -22,8 +22,7 @@ SDHCI_QUIRK_NO_BUSY_IRQ | \ SDHCI_QUIRK_NONSTANDARD_CLOCK | \ SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \ - SDHCI_QUIRK_PIO_NEEDS_DELAY | \ - SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET) + SDHCI_QUIRK_PIO_NEEDS_DELAY) #define ESDHC_SYSTEM_CONTROL 0x2c #define ESDHC_CLOCK_MASK 0x0000fff0 diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 5e25147e92f7..074157e8e73d 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -203,11 +203,6 @@ static void sdhci_do_reset(struct sdhci_host *host, u8 mask) host->ops->reset(host, mask); - if (host->quirks & SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET) { - sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); - sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); - } - if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { if ((host->ops->enable_dma) && (mask & SDHCI_RESET_ALL)) host->ops->enable_dma(host); diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index 9361d8ef509d..02919ef99419 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -61,8 +61,6 @@ struct sdhci_host { #define SDHCI_QUIRK_NONSTANDARD_CLOCK (1<<17) /* Controller does not like fast PIO transfers */ #define SDHCI_QUIRK_PIO_NEEDS_DELAY (1<<18) -/* Controller losing signal/interrupt enable states after reset */ -#define SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET (1<<19) /* Controller has to be forced to use block size of 2048 bytes */ #define SDHCI_QUIRK_FORCE_BLK_SZ_2048 (1<<20) /* Controller cannot do multi-block transfers */