clk: mediatek: clk-mt8195-vdo1: Reparent and set rate on vdo1_dpintf's parent

Like it was done for the vdo0_dp_intf0_dp_intf clock (used for eDP),
add the CLK_SET_RATE_PARENT flag to CLK_VDO1_DPINTF (used for DP)
and also fix its parent clock name as it has to be "top_dp" for two
reasons:
 - This is its real parent!
 - Likewise to eDP/VDO0 counterpart, we need clock source
   selection on CLK_TOP_DP.

Fixes: 2699875 ("clk: mediatek: Add MT8195 vdosys1 clock support")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20220816193257.658487-3-nfraprado@collabora.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: AngeloGioacchino Del Regno

drivers/clk/mediatek/clk-mt8195-vdo1.c

@@ -43,6 +43,10 @@ static const struct mtk_gate_regs vdo1_3_cg_regs = {
 #define GATE_VDO1_2(_id, _name, _parent, _shift)			\
 	GATE_MTK(_id, _name, _parent, &vdo1_2_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
 
+#define GATE_VDO1_2_FLAGS(_id, _name, _parent, _shift, _flags)		\
+	GATE_MTK_FLAGS(_id, _name, _parent, &vdo1_2_cg_regs, _shift,	\
+		       &mtk_clk_gate_ops_setclr, _flags)
+
 #define GATE_VDO1_3(_id, _name, _parent, _shift)			\
 	GATE_MTK(_id, _name, _parent, &vdo1_3_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
 
@@ -99,7 +103,7 @@ static const struct mtk_gate vdo1_clks[] = {
 	GATE_VDO1_2(CLK_VDO1_DISP_MONITOR_DPI0, "vdo1_disp_monitor_dpi0", "top_vpp", 1),
 	GATE_VDO1_2(CLK_VDO1_DPI1, "vdo1_dpi1", "top_vpp", 8),
 	GATE_VDO1_2(CLK_VDO1_DISP_MONITOR_DPI1, "vdo1_disp_monitor_dpi1", "top_vpp", 9),
-	GATE_VDO1_2(CLK_VDO1_DPINTF, "vdo1_dpintf", "top_vpp", 16),
+	GATE_VDO1_2_FLAGS(CLK_VDO1_DPINTF, "vdo1_dpintf", "top_dp", 16, CLK_SET_RATE_PARENT),
 	GATE_VDO1_2(CLK_VDO1_DISP_MONITOR_DPINTF, "vdo1_disp_monitor_dpintf", "top_vpp", 17),
 	/* VDO1_3 */
 	GATE_VDO1_3(CLK_VDO1_26M_SLOW, "vdo1_26m_slow", "clk26m", 8),