1. Patchew
  2. linux
  3. [PATCH v2 0/5] Display enablement changes for Qualcomm SA8775P platform
  4. View patch

[PATCH v2 3/5] drm/msm: mdss: Add SA8775P support

Mahadevan posted 5 patches 1 year, 4 months ago
There is a newer version of this series
[PATCH v2 3/5] drm/msm: mdss: Add SA8775P support
Posted by Mahadevan 1 year, 4 months ago 
Add Mobile Display Subsystem (MDSS) support for the SA8775P platform.

Signed-off-by: Mahadevan <quic_mahap@quicinc.com>
---

[v2]
- Update commit message. [Dmitry]
- Reorder compatible string of MDSS based on alphabetical order. [Dmitry]
- add reg_bus_bw in msm_mdss_data. [Dmitry]

---
 drivers/gpu/drm/msm/msm_mdss.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c
index faa88fd6eb4d..8f1d42a43bd0 100644
--- a/drivers/gpu/drm/msm/msm_mdss.c
+++ b/drivers/gpu/drm/msm/msm_mdss.c
@@ -573,6 +573,16 @@ static const struct msm_mdss_data qcm2290_data = {
 	.reg_bus_bw = 76800,
 };
 
+static const struct msm_mdss_data sa8775p_data = {
+	.ubwc_enc_version = UBWC_4_0,
+	.ubwc_dec_version = UBWC_4_0,
+	.ubwc_swizzle = 4,
+	.ubwc_static = 1,
+	.highest_bank_bit = 0,
+	.macrotile_mode = 1,
+	.reg_bus_bw = 74000,
+};
+
 static const struct msm_mdss_data sc7180_data = {
 	.ubwc_enc_version = UBWC_2_0,
 	.ubwc_dec_version = UBWC_2_0,
@@ -710,6 +720,7 @@ static const struct of_device_id mdss_dt_match[] = {
 	{ .compatible = "qcom,mdss" },
 	{ .compatible = "qcom,msm8998-mdss", .data = &msm8998_data },
 	{ .compatible = "qcom,qcm2290-mdss", .data = &qcm2290_data },
+	{ .compatible = "qcom,sa8775p-mdss", .data = &sa8775p_data },
 	{ .compatible = "qcom,sdm670-mdss", .data = &sdm670_data },
 	{ .compatible = "qcom,sdm845-mdss", .data = &sdm845_data },
 	{ .compatible = "qcom,sc7180-mdss", .data = &sc7180_data },
-- 
2.34.1
Re: [PATCH v2 3/5] drm/msm: mdss: Add SA8775P support
Posted by Dmitry Baryshkov 1 year, 4 months ago 
On Thu, Sep 26, 2024 at 04:31:35PM GMT, Mahadevan wrote:
> Add Mobile Display Subsystem (MDSS) support for the SA8775P platform.
> 
> Signed-off-by: Mahadevan <quic_mahap@quicinc.com>
> ---
> 
> [v2]
> - Update commit message. [Dmitry]
> - Reorder compatible string of MDSS based on alphabetical order. [Dmitry]
> - add reg_bus_bw in msm_mdss_data. [Dmitry]
> 
> ---
>  drivers/gpu/drm/msm/msm_mdss.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c
> index faa88fd6eb4d..8f1d42a43bd0 100644
> --- a/drivers/gpu/drm/msm/msm_mdss.c
> +++ b/drivers/gpu/drm/msm/msm_mdss.c
> @@ -573,6 +573,16 @@ static const struct msm_mdss_data qcm2290_data = {
>  	.reg_bus_bw = 76800,
>  };
>  
> +static const struct msm_mdss_data sa8775p_data = {
> +	.ubwc_enc_version = UBWC_4_0,
> +	.ubwc_dec_version = UBWC_4_0,

Just 4.0 or 4.3?

> +	.ubwc_swizzle = 4,
> +	.ubwc_static = 1,
> +	.highest_bank_bit = 0,
> +	.macrotile_mode = 1,
> +	.reg_bus_bw = 74000,
> +};
> +
>  static const struct msm_mdss_data sc7180_data = {
>  	.ubwc_enc_version = UBWC_2_0,
>  	.ubwc_dec_version = UBWC_2_0,
> @@ -710,6 +720,7 @@ static const struct of_device_id mdss_dt_match[] = {
>  	{ .compatible = "qcom,mdss" },
>  	{ .compatible = "qcom,msm8998-mdss", .data = &msm8998_data },
>  	{ .compatible = "qcom,qcm2290-mdss", .data = &qcm2290_data },
> +	{ .compatible = "qcom,sa8775p-mdss", .data = &sa8775p_data },
>  	{ .compatible = "qcom,sdm670-mdss", .data = &sdm670_data },
>  	{ .compatible = "qcom,sdm845-mdss", .data = &sdm845_data },
>  	{ .compatible = "qcom,sc7180-mdss", .data = &sc7180_data },
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry
Re: [PATCH v2 3/5] drm/msm: mdss: Add SA8775P support
Posted by Mahadevan P 1 year, 4 months ago 
On 9/26/2024 6:32 PM, Dmitry Baryshkov wrote:
> On Thu, Sep 26, 2024 at 04:31:35PM GMT, Mahadevan wrote:
>> Add Mobile Display Subsystem (MDSS) support for the SA8775P platform.
>>
>> Signed-off-by: Mahadevan <quic_mahap@quicinc.com>
>> ---
>>
>> [v2]
>> - Update commit message. [Dmitry]
>> - Reorder compatible string of MDSS based on alphabetical order. [Dmitry]
>> - add reg_bus_bw in msm_mdss_data. [Dmitry]
>>
>> ---
>>   drivers/gpu/drm/msm/msm_mdss.c | 11 +++++++++++
>>   1 file changed, 11 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c
>> index faa88fd6eb4d..8f1d42a43bd0 100644
>> --- a/drivers/gpu/drm/msm/msm_mdss.c
>> +++ b/drivers/gpu/drm/msm/msm_mdss.c
>> @@ -573,6 +573,16 @@ static const struct msm_mdss_data qcm2290_data = {
>>   	.reg_bus_bw = 76800,
>>   };
>>   
>> +static const struct msm_mdss_data sa8775p_data = {
>> +	.ubwc_enc_version = UBWC_4_0,
>> +	.ubwc_dec_version = UBWC_4_0,
> Just 4.0 or 4.3?


UBWC version has to be 4.0 as per UBWC reference document of sa8775p.


>
>> +	.ubwc_swizzle = 4,
>> +	.ubwc_static = 1,
>> +	.highest_bank_bit = 0,
>> +	.macrotile_mode = 1,
>> +	.reg_bus_bw = 74000,
>> +};
>> +
>>   static const struct msm_mdss_data sc7180_data = {
>>   	.ubwc_enc_version = UBWC_2_0,
>>   	.ubwc_dec_version = UBWC_2_0,
>> @@ -710,6 +720,7 @@ static const struct of_device_id mdss_dt_match[] = {
>>   	{ .compatible = "qcom,mdss" },
>>   	{ .compatible = "qcom,msm8998-mdss", .data = &msm8998_data },
>>   	{ .compatible = "qcom,qcm2290-mdss", .data = &qcm2290_data },
>> +	{ .compatible = "qcom,sa8775p-mdss", .data = &sa8775p_data },
>>   	{ .compatible = "qcom,sdm670-mdss", .data = &sdm670_data },
>>   	{ .compatible = "qcom,sdm845-mdss", .data = &sdm845_data },
>>   	{ .compatible = "qcom,sc7180-mdss", .data = &sc7180_data },
>> -- 
>> 2.34.1
>>
Re: [PATCH v2 3/5] drm/msm: mdss: Add SA8775P support
Posted by Dmitry Baryshkov 1 year, 4 months ago 
On Fri, Sep 27, 2024 at 12:14:16PM GMT, Mahadevan P wrote:
> 
> On 9/26/2024 6:32 PM, Dmitry Baryshkov wrote:
> > On Thu, Sep 26, 2024 at 04:31:35PM GMT, Mahadevan wrote:
> > > Add Mobile Display Subsystem (MDSS) support for the SA8775P platform.
> > > 
> > > Signed-off-by: Mahadevan <quic_mahap@quicinc.com>
> > > ---
> > > 
> > > [v2]
> > > - Update commit message. [Dmitry]
> > > - Reorder compatible string of MDSS based on alphabetical order. [Dmitry]
> > > - add reg_bus_bw in msm_mdss_data. [Dmitry]
> > > 
> > > ---
> > >   drivers/gpu/drm/msm/msm_mdss.c | 11 +++++++++++
> > >   1 file changed, 11 insertions(+)
> > > 
> > > diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c
> > > index faa88fd6eb4d..8f1d42a43bd0 100644
> > > --- a/drivers/gpu/drm/msm/msm_mdss.c
> > > +++ b/drivers/gpu/drm/msm/msm_mdss.c
> > > @@ -573,6 +573,16 @@ static const struct msm_mdss_data qcm2290_data = {
> > >   	.reg_bus_bw = 76800,
> > >   };
> > > +static const struct msm_mdss_data sa8775p_data = {
> > > +	.ubwc_enc_version = UBWC_4_0,
> > > +	.ubwc_dec_version = UBWC_4_0,
> > Just 4.0 or 4.3?
> 
> 
> UBWC version has to be 4.0 as per UBWC reference document of sa8775p.

Thanks for the confirmation.

-- 
With best wishes
Dmitry

Patchew 2.1-devel-b67e4c2

© 2016 - 2026 Red Hat, Inc.