openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

mmc: tegra: use correct accessor for misc ctrl register 

The misc control register is 32bit wide, the used readw/writew
accessors only mainipulate the low 16bit of this register. It
currently doesn't matter as all the bit changed are located in
the lower half, but together with the u32 variable used to hold
the contents of the register it is seriously confusing.

Switch to 32bit accessors to avoid any future breakage.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Lucas Stach 2015-12-22 19:41:04 +01:00 committed by Ulf Hansson
parent 7ad2ed1dfc
commit 1b84def8bf
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/mmc/host/sdhci-tegra.c
View File

@ -140,7 +140,7 @@ static void tegra_sdhci_reset(struct sdhci_host *host, u8 mask)
if (!(mask & SDHCI_RESET_ALL))
return;
misc_ctrl = sdhci_readw(host, SDHCI_TEGRA_VENDOR_MISC_CTRL);
misc_ctrl = sdhci_readl(host, SDHCI_TEGRA_VENDOR_MISC_CTRL);
/* Erratum: Enable SDHCI spec v3.00 support */
if (soc_data->nvquirks & NVQUIRK_ENABLE_SDHCI_SPEC_300)
misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_SDHCI_SPEC_300;
@ -151,7 +151,7 @@ static void tegra_sdhci_reset(struct sdhci_host *host, u8 mask)
misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_DDR50;
if (soc_data->nvquirks & NVQUIRK_ENABLE_SDR104)
misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_SDR104;
sdhci_writew(host, misc_ctrl, SDHCI_TEGRA_VENDOR_MISC_CTRL);
sdhci_writel(host, misc_ctrl, SDHCI_TEGRA_VENDOR_MISC_CTRL);
clk_ctrl = sdhci_readl(host, SDHCI_TEGRA_VENDOR_CLOCK_CTRL);
clk_ctrl &= ~SDHCI_CLOCK_CTRL_SPI_MODE_CLKEN_OVERRIDE;