OMAP: DSS2: DSI: enable scp clock in dsi_dump_regs()

OMAP4 requires SCP clocks enabled to access DSI PLL registers and DSI COMPLEXIO
registers. Enable scp clock before accessing the registers and disable it before
exiting dsi_dump_regs().

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/video/omap2/dss/dsi.c

@@ -1718,6 +1718,7 @@ void dsi_dump_regs(struct seq_file *s)
 #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dsi_read_reg(r))
 
 	dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK);
+	dsi_enable_scp_clk();
 
 	DUMPREG(DSI_REVISION);
 	DUMPREG(DSI_SYSCONFIG);
@@ -1789,6 +1790,7 @@ void dsi_dump_regs(struct seq_file *s)
 	DUMPREG(DSI_PLL_CONFIGURATION1);
 	DUMPREG(DSI_PLL_CONFIGURATION2);
 
+	dsi_disable_scp_clk();
 	dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK);
 #undef DUMPREG
 }