Messages in this thread | | | Subject | Re: [PATCH V1] mmc: sdhci-msm: Clear tuning done flag while hs400 tuning | From | Veerabhadrarao Badiganti <> | Date | Fri, 29 May 2020 19:11:36 +0530 |
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On 5/29/2020 4:05 PM, Ulf Hansson wrote: > On Thu, 28 May 2020 at 17:14, Veerabhadrarao Badiganti > <vbadigan@codeaurora.org> wrote: >> Clear tuning_done flag while executing tuning to ensure vendor >> specific HS400 settings are applied properly when the controller >> is re-initialized in HS400 mode. >> >> Without this, re-initialization of the qcom SDHC in HS400 mode fails >> while resuming the driver from runtime-suspend or system-suspend. >> >> Fixes: ff06ce4 ("mmc: sdhci-msm: Add HS400 platform support") >> Cc: stable@vger.kernel.org >> Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org> > Applied for next, thanks! > > Kind regards > Uffe Thanks Ulf. I see a mail on this patch, that SHA in the commit text should be 12 digit. Let me know if i have to re-post this patch by correcting it. >> --- >> drivers/mmc/host/sdhci-msm.c | 6 ++++++ >> 1 file changed, 6 insertions(+) >> >> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c >> index 95cd973..b277dd7 100644 >> --- a/drivers/mmc/host/sdhci-msm.c >> +++ b/drivers/mmc/host/sdhci-msm.c >> @@ -1174,6 +1174,12 @@ static int sdhci_msm_execute_tuning(struct mmc_host *mmc, u32 opcode) >> msm_host->use_cdr = true; >> >> /* >> + * Clear tuning_done flag before tuning to ensure proper >> + * HS400 settings. >> + */ >> + msm_host->tuning_done = 0; >> + >> + /* >> * For HS400 tuning in HS200 timing requires: >> * - select MCLK/2 in VENDOR_SPEC >> * - program MCLK to 400MHz (or nearest supported) in GCC >> -- >> Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project >>
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