diff mbox series

[V4,1/2] mmc: sdhci-msm: Add interconnect bandwidth scaling support

Message ID 1591691846-7578-2-git-send-email-ppvk@codeaurora.org (mailing list archive)
State New, archived
Headers show
Series Add SDHC interconnect bandwidth scaling | expand

Commit Message

Pradeep P V K June 9, 2020, 8:37 a.m. UTC
Interconnect bandwidth scaling support is now added as a
part of OPP. So, make sure interconnect driver is ready
before handling interconnect scaling.

Signed-off-by: Pradeep P V K <ppvk@codeaurora.org>
Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
---

This change is based on
[1] [Patch v8] Introduce OPP bandwidth bindings
(https://lkml.org/lkml/2020/5/12/493)

[2] [Patch v3] mmc: sdhci-msm: Fix error handling
for dev_pm_opp_of_add_table()
(https://lkml.org/lkml/2020/5/5/491)

 drivers/mmc/host/sdhci-msm.c | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Matthias Kaehlcke June 15, 2020, 11:12 p.m. UTC | #1
On Tue, Jun 09, 2020 at 02:07:25PM +0530, Pradeep P V K wrote:
> Interconnect bandwidth scaling support is now added as a
> part of OPP. So, make sure interconnect driver is ready
> before handling interconnect scaling.
> 
> Signed-off-by: Pradeep P V K <ppvk@codeaurora.org>
> Reviewed-by: Sibi Sankar <sibis@codeaurora.org>

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>

Do you plan to send also patches that add the necessary DT entries?
I'm particularly interested in SC7180.
Ulf Hansson June 16, 2020, 11:32 a.m. UTC | #2
On Tue, 9 Jun 2020 at 10:38, Pradeep P V K <ppvk@codeaurora.org> wrote:
>
> Interconnect bandwidth scaling support is now added as a
> part of OPP. So, make sure interconnect driver is ready
> before handling interconnect scaling.
>
> Signed-off-by: Pradeep P V K <ppvk@codeaurora.org>
> Reviewed-by: Sibi Sankar <sibis@codeaurora.org>

Applied for next, thanks!

Kind regards
Uffe


> ---
>
> This change is based on
> [1] [Patch v8] Introduce OPP bandwidth bindings
> (https://lkml.org/lkml/2020/5/12/493)
>
> [2] [Patch v3] mmc: sdhci-msm: Fix error handling
> for dev_pm_opp_of_add_table()
> (https://lkml.org/lkml/2020/5/5/491)
>
>  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 b277dd7..15c42b0 100644
> --- a/drivers/mmc/host/sdhci-msm.c
> +++ b/drivers/mmc/host/sdhci-msm.c
> @@ -14,6 +14,7 @@
>  #include <linux/slab.h>
>  #include <linux/iopoll.h>
>  #include <linux/regulator/consumer.h>
> +#include <linux/interconnect.h>
>
>  #include "sdhci-pltfm.h"
>  #include "cqhci.h"
> @@ -2070,6 +2071,11 @@ static int sdhci_msm_probe(struct platform_device *pdev)
>         }
>         msm_host->bulk_clks[0].clk = clk;
>
> +        /* Check for optional interconnect paths */
> +       ret = dev_pm_opp_of_find_icc_paths(&pdev->dev, NULL);
> +       if (ret)
> +               goto bus_clk_disable;
> +
>         msm_host->opp_table = dev_pm_opp_set_clkname(&pdev->dev, "core");
>         if (IS_ERR(msm_host->opp_table)) {
>                 ret = PTR_ERR(msm_host->opp_table);
> --
> 1.9.1
>
Pradeep P V K June 16, 2020, 1:07 p.m. UTC | #3
Hi Matthias,

Thanks!

On 2020-06-16 04:42, Matthias Kaehlcke wrote:
> On Tue, Jun 09, 2020 at 02:07:25PM +0530, Pradeep P V K wrote:
>> Interconnect bandwidth scaling support is now added as a
>> part of OPP. So, make sure interconnect driver is ready
>> before handling interconnect scaling.
>> 
>> Signed-off-by: Pradeep P V K <ppvk@codeaurora.org>
>> Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
> 
> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
> 
> Do you plan to send also patches that add the necessary DT entries?
> I'm particularly interested in SC7180.

Yes, we will send the DT entries soon.
diff mbox series

Patch

diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index b277dd7..15c42b0 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -14,6 +14,7 @@ 
 #include <linux/slab.h>
 #include <linux/iopoll.h>
 #include <linux/regulator/consumer.h>
+#include <linux/interconnect.h>
 
 #include "sdhci-pltfm.h"
 #include "cqhci.h"
@@ -2070,6 +2071,11 @@  static int sdhci_msm_probe(struct platform_device *pdev)
 	}
 	msm_host->bulk_clks[0].clk = clk;
 
+	 /* Check for optional interconnect paths */
+	ret = dev_pm_opp_of_find_icc_paths(&pdev->dev, NULL);
+	if (ret)
+		goto bus_clk_disable;
+
 	msm_host->opp_table = dev_pm_opp_set_clkname(&pdev->dev, "core");
 	if (IS_ERR(msm_host->opp_table)) {
 		ret = PTR_ERR(msm_host->opp_table);