clk: qcom: dispcc-sm8550: fix DisplayPort clocks

On SM8550 DisplayPort link clocks use frequency tables inherited from
the vendor kernel, it is not applicable in the upstream kernel. Drop
frequency tables and use clk_byte2_ops for those clocks.

This fixes frequency selection in the OPP core (which otherwise attempts
to use invalid 810 KHz as DP link rate), also fixing the following
message:
msm-dp-display ae90000.displayport-controller: _opp_config_clk_single: failed to set clock rate: -22

Fixes: 90114ca11476 ("clk: qcom: add SM8550 DISPCC driver")
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-HDK
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240424-dispcc-dp-clocks-v2-3-b44038f3fa96@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/drivers/clk/qcom/dispcc-sm8550.c b/drivers/clk/qcom/dispcc-sm8550.c
index 3672c73ac11c692f8c133dabc4cd978bd6fafbae..38ecea805503d3e9b4178e647eac1474984d0984 100644 (file)
--- a/drivers/clk/qcom/dispcc-sm8550.c
+++ b/drivers/clk/qcom/dispcc-sm8550.c
@@ -345,26 +345,17 @@ static struct clk_rcg2 disp_cc_mdss_dptx0_aux_clk_src = {
        },
 };
 
-static const struct freq_tbl ftbl_disp_cc_mdss_dptx0_link_clk_src[] = {
-       F(162000, P_DP0_PHY_PLL_LINK_CLK, 1, 0, 0),
-       F(270000, P_DP0_PHY_PLL_LINK_CLK, 1, 0, 0),
-       F(540000, P_DP0_PHY_PLL_LINK_CLK, 1, 0, 0),
-       F(810000, P_DP0_PHY_PLL_LINK_CLK, 1, 0, 0),
-       { }
-};
-
 static struct clk_rcg2 disp_cc_mdss_dptx0_link_clk_src = {
        .cmd_rcgr = 0x8170,
        .mnd_width = 0,
        .hid_width = 5,
        .parent_map = disp_cc_parent_map_7,
-       .freq_tbl = ftbl_disp_cc_mdss_dptx0_link_clk_src,
        .clkr.hw.init = &(struct clk_init_data) {
                .name = "disp_cc_mdss_dptx0_link_clk_src",
                .parent_data = disp_cc_parent_data_7,
                .num_parents = ARRAY_SIZE(disp_cc_parent_data_7),
                .flags = CLK_SET_RATE_PARENT,
-               .ops = &clk_rcg2_ops,
+               .ops = &clk_byte2_ops,
        },
 };
 
@@ -418,13 +409,12 @@ static struct clk_rcg2 disp_cc_mdss_dptx1_link_clk_src = {
        .mnd_width = 0,
        .hid_width = 5,
        .parent_map = disp_cc_parent_map_3,
-       .freq_tbl = ftbl_disp_cc_mdss_dptx0_link_clk_src,
        .clkr.hw.init = &(struct clk_init_data) {
                .name = "disp_cc_mdss_dptx1_link_clk_src",
                .parent_data = disp_cc_parent_data_3,
                .num_parents = ARRAY_SIZE(disp_cc_parent_data_3),
                .flags = CLK_SET_RATE_PARENT,
-               .ops = &clk_rcg2_ops,
+               .ops = &clk_byte2_ops,
        },
 };
 
@@ -478,13 +468,12 @@ static struct clk_rcg2 disp_cc_mdss_dptx2_link_clk_src = {
        .mnd_width = 0,
        .hid_width = 5,
        .parent_map = disp_cc_parent_map_3,
-       .freq_tbl = ftbl_disp_cc_mdss_dptx0_link_clk_src,
        .clkr.hw.init = &(struct clk_init_data) {
                .name = "disp_cc_mdss_dptx2_link_clk_src",
                .parent_data = disp_cc_parent_data_3,
                .num_parents = ARRAY_SIZE(disp_cc_parent_data_3),
                .flags = CLK_SET_RATE_PARENT,
-               .ops = &clk_rcg2_ops,
+               .ops = &clk_byte2_ops,
        },
 };
 
@@ -538,13 +527,12 @@ static struct clk_rcg2 disp_cc_mdss_dptx3_link_clk_src = {
        .mnd_width = 0,
        .hid_width = 5,
        .parent_map = disp_cc_parent_map_3,
-       .freq_tbl = ftbl_disp_cc_mdss_dptx0_link_clk_src,
        .clkr.hw.init = &(struct clk_init_data) {
                .name = "disp_cc_mdss_dptx3_link_clk_src",
                .parent_data = disp_cc_parent_data_3,
                .num_parents = ARRAY_SIZE(disp_cc_parent_data_3),
                .flags = CLK_SET_RATE_PARENT,
-               .ops = &clk_rcg2_ops,
+               .ops = &clk_byte2_ops,
        },
 };