* [RFC PATCH] mmc: sdhi: sys_dmac: check for all Gen3 types when whitelisting
@ 2018-09-11 13:06 Wolfram Sang
2018-09-11 13:29 ` Ulf Hansson
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Wolfram Sang @ 2018-09-11 13:06 UTC (permalink / raw)
To: linux-mmc
Cc: linux-renesas-soc, Niklas Söderlund, Yoshihiro Shimoda,
Wolfram Sang
From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Fixes: 26eb2607fa28 ("mmc: renesas_sdhi: add eMMC HS400 mode support")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
So, adding HS400 support broke the detection here. I suggest we discuss
internally, if this kind of white listing is still needed, at all. Until
then, this patch makes things work again on H3 and M3-W.
drivers/mmc/host/renesas_sdhi_sys_dmac.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/renesas_sdhi_sys_dmac.c b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
index f5fcbb5dc8cd..f027f66fe0c1 100644
--- a/drivers/mmc/host/renesas_sdhi_sys_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
@@ -495,7 +495,8 @@ static const struct soc_device_attribute gen3_soc_whitelist[] = {
static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev)
{
- if (of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible &&
+ if ((of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible ||
+ of_device_get_match_data(&pdev->dev) == &of_rcar_r8a7795_compatible) &&
!soc_device_match(gen3_soc_whitelist))
return -ENODEV;
--
2.18.0
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [RFC PATCH] mmc: sdhi: sys_dmac: check for all Gen3 types when whitelisting
2018-09-11 13:06 [RFC PATCH] mmc: sdhi: sys_dmac: check for all Gen3 types when whitelisting Wolfram Sang
@ 2018-09-11 13:29 ` Ulf Hansson
2018-09-11 13:58 ` Wolfram Sang
2018-09-12 9:34 ` Simon Horman
2018-09-17 18:34 ` Ulf Hansson
2 siblings, 1 reply; 5+ messages in thread
From: Ulf Hansson @ 2018-09-11 13:29 UTC (permalink / raw)
To: Wolfram Sang
Cc: linux-mmc, Linux-Renesas, Niklas Söderlund,
Yoshihiro Shimoda, Wolfram Sang
On 11 September 2018 at 15:06, Wolfram Sang <wsa@the-dreams.de> wrote:
> From: Wolfram Sang <wsa+renesas@sang-engineering.com>
>
> Fixes: 26eb2607fa28 ("mmc: renesas_sdhi: add eMMC HS400 mode support")
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> ---
>
> So, adding HS400 support broke the detection here. I suggest we discuss
> internally, if this kind of white listing is still needed, at all. Until
> then, this patch makes things work again on H3 and M3-W.
As this is tagged "RFC PATCH", does it mean that you want the
discussion to happen before I apply this for fixes?
Kind regards
Uffe
>
> drivers/mmc/host/renesas_sdhi_sys_dmac.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/renesas_sdhi_sys_dmac.c b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
> index f5fcbb5dc8cd..f027f66fe0c1 100644
> --- a/drivers/mmc/host/renesas_sdhi_sys_dmac.c
> +++ b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
> @@ -495,7 +495,8 @@ static const struct soc_device_attribute gen3_soc_whitelist[] = {
>
> static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev)
> {
> - if (of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible &&
> + if ((of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible ||
> + of_device_get_match_data(&pdev->dev) == &of_rcar_r8a7795_compatible) &&
> !soc_device_match(gen3_soc_whitelist))
> return -ENODEV;
>
> --
> 2.18.0
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [RFC PATCH] mmc: sdhi: sys_dmac: check for all Gen3 types when whitelisting
2018-09-11 13:29 ` Ulf Hansson
@ 2018-09-11 13:58 ` Wolfram Sang
0 siblings, 0 replies; 5+ messages in thread
From: Wolfram Sang @ 2018-09-11 13:58 UTC (permalink / raw)
To: Ulf Hansson
Cc: linux-mmc, Linux-Renesas, Niklas Söderlund,
Yoshihiro Shimoda, Wolfram Sang
[-- Attachment #1: Type: text/plain, Size: 763 bytes --]
On Tue, Sep 11, 2018 at 03:29:14PM +0200, Ulf Hansson wrote:
> On 11 September 2018 at 15:06, Wolfram Sang <wsa@the-dreams.de> wrote:
> > From: Wolfram Sang <wsa+renesas@sang-engineering.com>
> >
> > Fixes: 26eb2607fa28 ("mmc: renesas_sdhi: add eMMC HS400 mode support")
> > Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> > ---
> >
> > So, adding HS400 support broke the detection here. I suggest we discuss
> > internally, if this kind of white listing is still needed, at all. Until
> > then, this patch makes things work again on H3 and M3-W.
>
> As this is tagged "RFC PATCH", does it mean that you want the
> discussion to happen before I apply this for fixes?
Yes, exactly. This is more "to talk over code".
Thanks!
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [RFC PATCH] mmc: sdhi: sys_dmac: check for all Gen3 types when whitelisting
2018-09-11 13:06 [RFC PATCH] mmc: sdhi: sys_dmac: check for all Gen3 types when whitelisting Wolfram Sang
2018-09-11 13:29 ` Ulf Hansson
@ 2018-09-12 9:34 ` Simon Horman
2018-09-17 18:34 ` Ulf Hansson
2 siblings, 0 replies; 5+ messages in thread
From: Simon Horman @ 2018-09-12 9:34 UTC (permalink / raw)
To: Wolfram Sang
Cc: linux-mmc, linux-renesas-soc, Niklas Söderlund,
Yoshihiro Shimoda, Wolfram Sang
On Tue, Sep 11, 2018 at 03:06:26PM +0200, Wolfram Sang wrote:
> From: Wolfram Sang <wsa+renesas@sang-engineering.com>
>
> Fixes: 26eb2607fa28 ("mmc: renesas_sdhi: add eMMC HS400 mode support")
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> ---
>
> So, adding HS400 support broke the detection here. I suggest we discuss
> internally, if this kind of white listing is still needed, at all. Until
> then, this patch makes things work again on H3 and M3-W.
Ouch, sorry about letting this in.
This fix looks fine to me, notwithstanding discussion of the whitelisting
approach itself.
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
> drivers/mmc/host/renesas_sdhi_sys_dmac.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/renesas_sdhi_sys_dmac.c b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
> index f5fcbb5dc8cd..f027f66fe0c1 100644
> --- a/drivers/mmc/host/renesas_sdhi_sys_dmac.c
> +++ b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
> @@ -495,7 +495,8 @@ static const struct soc_device_attribute gen3_soc_whitelist[] = {
>
> static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev)
> {
> - if (of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible &&
> + if ((of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible ||
> + of_device_get_match_data(&pdev->dev) == &of_rcar_r8a7795_compatible) &&
> !soc_device_match(gen3_soc_whitelist))
> return -ENODEV;
>
> --
> 2.18.0
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [RFC PATCH] mmc: sdhi: sys_dmac: check for all Gen3 types when whitelisting
2018-09-11 13:06 [RFC PATCH] mmc: sdhi: sys_dmac: check for all Gen3 types when whitelisting Wolfram Sang
2018-09-11 13:29 ` Ulf Hansson
2018-09-12 9:34 ` Simon Horman
@ 2018-09-17 18:34 ` Ulf Hansson
2 siblings, 0 replies; 5+ messages in thread
From: Ulf Hansson @ 2018-09-17 18:34 UTC (permalink / raw)
To: Wolfram Sang
Cc: linux-mmc, Linux-Renesas, Niklas Söderlund,
Yoshihiro Shimoda, Wolfram Sang
On 11 September 2018 at 15:06, Wolfram Sang <wsa@the-dreams.de> wrote:
> From: Wolfram Sang <wsa+renesas@sang-engineering.com>
>
> Fixes: 26eb2607fa28 ("mmc: renesas_sdhi: add eMMC HS400 mode support")
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Applied for fixes, thanks!
Kind regards
Uffe
> ---
>
> So, adding HS400 support broke the detection here. I suggest we discuss
> internally, if this kind of white listing is still needed, at all. Until
> then, this patch makes things work again on H3 and M3-W.
>
> drivers/mmc/host/renesas_sdhi_sys_dmac.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/renesas_sdhi_sys_dmac.c b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
> index f5fcbb5dc8cd..f027f66fe0c1 100644
> --- a/drivers/mmc/host/renesas_sdhi_sys_dmac.c
> +++ b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
> @@ -495,7 +495,8 @@ static const struct soc_device_attribute gen3_soc_whitelist[] = {
>
> static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev)
> {
> - if (of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible &&
> + if ((of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible ||
> + of_device_get_match_data(&pdev->dev) == &of_rcar_r8a7795_compatible) &&
> !soc_device_match(gen3_soc_whitelist))
> return -ENODEV;
>
> --
> 2.18.0
>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2018-09-18 0:03 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2018-09-11 13:06 [RFC PATCH] mmc: sdhi: sys_dmac: check for all Gen3 types when whitelisting Wolfram Sang
2018-09-11 13:29 ` Ulf Hansson
2018-09-11 13:58 ` Wolfram Sang
2018-09-12 9:34 ` Simon Horman
2018-09-17 18:34 ` Ulf Hansson
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