Now we have a proper implementation for the power irq handling and this
quirk is not needed anymore. In fact, it is causing card detection delays
on apq8096 platforms and the following error is displayed:
sdhci_msm 74a4900.sdhci: mmc0: pwr_irq for req: (4) timed out
The quirk is forcing the controller to retain 1.8V signalling on the slot
even when a new card is inserted, which is not correct. The proper behavior
would be to reset the controller in order to start with 3.3V signaling.
Fixes: c0309b3803fe ("mmc: sdhci-msm: Add sdhci msm register write APIs which wait for pwr irq")
Suggested-by: Vijay Viswanath <[email protected]>
Signed-off-by: Georgi Djakov <[email protected]>
---
This can go for v4.18, as it's not a critical fix.
Tested on db410c and db820c.
---
drivers/mmc/host/sdhci-msm.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index c283291db705..791779173332 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -1333,7 +1333,6 @@ static const struct sdhci_ops sdhci_msm_ops = {
static const struct sdhci_pltfm_data sdhci_msm_pdata = {
.quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION |
- SDHCI_QUIRK_NO_CARD_NO_RESET |
SDHCI_QUIRK_SINGLE_POWER_WRITE |
SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
On 30/05/18 17:43, Georgi Djakov wrote:
> Now we have a proper implementation for the power irq handling and this
> quirk is not needed anymore. In fact, it is causing card detection delays
> on apq8096 platforms and the following error is displayed:
> sdhci_msm 74a4900.sdhci: mmc0: pwr_irq for req: (4) timed out
>
> The quirk is forcing the controller to retain 1.8V signalling on the slot
> even when a new card is inserted, which is not correct. The proper behavior
> would be to reset the controller in order to start with 3.3V signaling.
>
> Fixes: c0309b3803fe ("mmc: sdhci-msm: Add sdhci msm register write APIs which wait for pwr irq")
> Suggested-by: Vijay Viswanath <[email protected]>
> Signed-off-by: Georgi Djakov <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
> ---
> This can go for v4.18, as it's not a critical fix.
> Tested on db410c and db820c.
> ---
> drivers/mmc/host/sdhci-msm.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
> index c283291db705..791779173332 100644
> --- a/drivers/mmc/host/sdhci-msm.c
> +++ b/drivers/mmc/host/sdhci-msm.c
> @@ -1333,7 +1333,6 @@ static const struct sdhci_ops sdhci_msm_ops = {
>
> static const struct sdhci_pltfm_data sdhci_msm_pdata = {
> .quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION |
> - SDHCI_QUIRK_NO_CARD_NO_RESET |
> SDHCI_QUIRK_SINGLE_POWER_WRITE |
> SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
> .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
>
On 30 May 2018 at 16:43, Georgi Djakov <[email protected]> wrote:
> Now we have a proper implementation for the power irq handling and this
> quirk is not needed anymore. In fact, it is causing card detection delays
> on apq8096 platforms and the following error is displayed:
> sdhci_msm 74a4900.sdhci: mmc0: pwr_irq for req: (4) timed out
>
> The quirk is forcing the controller to retain 1.8V signalling on the slot
> even when a new card is inserted, which is not correct. The proper behavior
> would be to reset the controller in order to start with 3.3V signaling.
>
> Fixes: c0309b3803fe ("mmc: sdhci-msm: Add sdhci msm register write APIs which wait for pwr irq")
> Suggested-by: Vijay Viswanath <[email protected]>
> Signed-off-by: Georgi Djakov <[email protected]>
Thanks, applied for next!
Kind regards
Uffe
> ---
> This can go for v4.18, as it's not a critical fix.
> Tested on db410c and db820c.
> ---
> drivers/mmc/host/sdhci-msm.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
> index c283291db705..791779173332 100644
> --- a/drivers/mmc/host/sdhci-msm.c
> +++ b/drivers/mmc/host/sdhci-msm.c
> @@ -1333,7 +1333,6 @@ static const struct sdhci_ops sdhci_msm_ops = {
>
> static const struct sdhci_pltfm_data sdhci_msm_pdata = {
> .quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION |
> - SDHCI_QUIRK_NO_CARD_NO_RESET |
> SDHCI_QUIRK_SINGLE_POWER_WRITE |
> SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
> .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,