[Freedreno] [PATCH v3 6/7] drm/msm/dsi: Add phy configuration for MSM8226

Dmitry Baryshkov dmitry.baryshkov at linaro.org
Sun Jun 4 02:39:12 UTC 2023


On 01/06/2023 20:00, Luca Weiss wrote:
> MSM8226 uses a modified PLL lock sequence compared to MSM8974, which is
> based on the function dsi_pll_enable_seq_m in the msm-3.10 kernel.
> 
> Worth noting that the msm-3.10 downstream kernel also will try other
> sequences in case this one doesn't work, but during testing it has shown
> that the _m sequence succeeds first time also:
> 
>    .pll_enable_seqs[0] = dsi_pll_enable_seq_m,
>    .pll_enable_seqs[1] = dsi_pll_enable_seq_m,
>    .pll_enable_seqs[2] = dsi_pll_enable_seq_d,
>    .pll_enable_seqs[3] = dsi_pll_enable_seq_d,
>    .pll_enable_seqs[4] = dsi_pll_enable_seq_f1,
>    .pll_enable_seqs[5] = dsi_pll_enable_seq_c,
>    .pll_enable_seqs[6] = dsi_pll_enable_seq_e,
> 
> We may need to expand this in the future.
> 
> Signed-off-by: Luca Weiss <luca at z3ntu.xyz>
> ---
>   drivers/gpu/drm/msm/dsi/phy/dsi_phy.c      |  2 +
>   drivers/gpu/drm/msm/dsi/phy/dsi_phy.h      |  3 +-
>   drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c | 97 ++++++++++++++++++++++++++++++
>   3 files changed, 101 insertions(+), 1 deletion(-)

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>

-- 
With best wishes
Dmitry



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