On Friday, August 07, 2015 at 04:16:28 AM, Simon Glass wrote:
Some SoCs want to adjust the input clock to the DWMMC block as a way of controlling the MMC bus clock. Update the get_mmc_clk() method to support this.
Signed-off-by: Simon Glass sjg@chromium.org
Hi Simon,
Changes in v4:
- Update commit message to indicate this patch is for the dw_mmc driver
drivers/mmc/dw_mmc.c | 2 +- drivers/mmc/exynos_dw_mmc.c | 2 +- include/dwmmc.h | 16 +++++++++++++++- 3 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c index 8f28d7e..a034c3f 100644 --- a/drivers/mmc/dw_mmc.c +++ b/drivers/mmc/dw_mmc.c @@ -248,7 +248,7 @@ static int dwmci_setup_bus(struct dwmci_host *host, u32 freq) * host->bus_hz should be set by user. */ if (host->get_mmc_clk)
sclk = host->get_mmc_clk(host);
sclk = host->get_mmc_clk(host, freq);
Why are you passing the @freq into get_mmc_clk() ? Shouldn't you call some clock framework function to determine the input frequency of the DWMMC block from within the get_mmc_clk() implementation instead ? What do you think please ?
Best regards, Marek Vasut