clk: mediatek: mt8188-vdo1: Add VDO1_DPI1_HDMI clock for hdmitx

Add a missing clock found in the VDO1 controller for the HDMI TX
controller over DPI1.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

drivers/clk/mediatek/clk-mt8188-vdo1.c

@@ -43,6 +43,12 @@ static const struct mtk_gate_regs vdo1_4_cg_regs = {
 	.sta_ofs = 0x140,
 };
 
+static const struct mtk_gate_regs vdo1_5_cg_regs = {
+	.set_ofs = 0x400,
+	.clr_ofs = 0x400,
+	.sta_ofs = 0x400,
+};
+
 #define GATE_VDO1_0(_id, _name, _parent, _shift)			\
 	GATE_MTK(_id, _name, _parent, &vdo1_0_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
 
@@ -62,6 +68,9 @@ static const struct mtk_gate_regs vdo1_4_cg_regs = {
 #define GATE_VDO1_4(_id, _name, _parent, _shift)			\
 	GATE_MTK(_id, _name, _parent, &vdo1_4_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
 
+#define GATE_VDO1_5(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &vdo1_5_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
 static const struct mtk_gate vdo1_clks[] = {
 	/* VDO1_0 */
 	GATE_VDO1_0(CLK_VDO1_SMI_LARB2, "vdo1_smi_larb2", "top_vpp", 0),
@@ -129,6 +138,8 @@ static const struct mtk_gate vdo1_clks[] = {
 	GATE_VDO1_3(CLK_VDO1_DISP_MONITOR_DPINTF, "vdo1_disp_monitor_dpintf_ck", "top_vpp", 17),
 	/* VDO1_4 */
 	GATE_VDO1_4(CLK_VDO1_26M_SLOW, "vdo1_26m_slow_ck", "clk26m", 8),
+	/* VDO1_5 */
+	GATE_VDO1_5(CLK_VDO1_DPI1_HDMI, "vdo1_dpi1_hdmi", "hdmi_txpll", 0),
 };
 
 static const struct mtk_clk_desc vdo1_desc = {