clk: qcom: dispcc-qcm2290: Fix GPLL0_OUT_DIV handling

GPLL0_OUT_DIV (.fw_name = "gcc_disp_gpll0_div_clk_src") was previously
made to reuse the same parent enum entry as GPLL0_OUT_MAIN
(.fw_name = "gcc_disp_gpll0_clk_src") in parent_map_2.

Resolve it by introducing its own entry in the parent enum and
correctly assigning it in disp_cc_parent_map_2[].

Fixes: cc517ea3 ("clk: qcom: Add display clock controller driver for QCM2290")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230412-topic-qcm_dispcc-v2-2-bce7dd512fe4@linaro.org

drivers/clk/qcom/dispcc-qcm2290.c

@@ -28,6 +28,7 @@ enum {
 	P_DISP_CC_PLL0_OUT_MAIN,
 	P_DSI0_PHY_PLL_OUT_BYTECLK,
 	P_DSI0_PHY_PLL_OUT_DSICLK,
+	P_GPLL0_OUT_DIV,
 	P_GPLL0_OUT_MAIN,
 	P_SLEEP_CLK,
 };
@@ -84,7 +85,7 @@ static const struct clk_parent_data disp_cc_parent_data_1[] = {
 
 static const struct parent_map disp_cc_parent_map_2[] = {
 	{ P_BI_TCXO_AO, 0 },
-	{ P_GPLL0_OUT_MAIN, 4 },
+	{ P_GPLL0_OUT_DIV, 4 },
 };
 
 static const struct clk_parent_data disp_cc_parent_data_2[] = {
@@ -153,8 +154,8 @@ static struct clk_regmap_div disp_cc_mdss_byte0_div_clk_src = {
 
 static const struct freq_tbl ftbl_disp_cc_mdss_ahb_clk_src[] = {
 	F(19200000, P_BI_TCXO_AO, 1, 0, 0),
-	F(37500000, P_GPLL0_OUT_MAIN, 8, 0, 0),
-	F(75000000, P_GPLL0_OUT_MAIN, 4, 0, 0),
+	F(37500000, P_GPLL0_OUT_DIV, 8, 0, 0),
+	F(75000000, P_GPLL0_OUT_DIV, 4, 0, 0),
 	{ }
 };