clk: ux500: move AB8500 sysclk over to PRCMU clk driver

The AB8500 sysclk is just another PRCMU-controlled clock, there
is no reason why it should be in the ABx500-controlled part of
the clock implementation. Doing this and the corresponding device
tree changes makes USB work on the Ux500 again.
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/ux500/abx500-clk.c

@@ -15,7 +15,6 @@
 #include <linux/mfd/abx500/ab8500-sysctrl.h>
 #include <linux/clkdev.h>
 #include <linux/clk-provider.h>
-#include <linux/mfd/dbx500-prcmu.h>
 #include "clk.h"
 
 /* Clock definitions for ab8500 */
@@ -39,13 +38,6 @@ static int ab8500_reg_clks(struct device *dev)
 	if (ret)
 		return ret;
 
-	/* ab8500_sysclk */
-	clk = clk_reg_prcmu_gate("ab8500_sysclk", NULL, PRCMU_SYSCLK, 0);
-	clk_register_clkdev(clk, "sysclk", "ab8500-usb.0");
-	clk_register_clkdev(clk, "sysclk", "ab-iddet.0");
-	clk_register_clkdev(clk, "sysclk", "snd-soc-mop500.0");
-	clk_register_clkdev(clk, "sysclk", "shrm_bus");
-
 	/* ab8500_sysclk2 */
 	clk = clk_reg_sysctrl_gate(dev , "ab8500_sysclk2", "ab8500_sysclk",
 		AB8500_SYSULPCLKCTRL1, AB8500_SYSULPCLKCTRL1_SYSCLKBUF2REQ,

drivers/clk/ux500/u8500_of_clk.c

@@ -206,6 +206,9 @@ static void u8500_clk_init(struct device_node *np)
 	clk = clk_reg_prcmu_gate("timclk", NULL, PRCMU_TIMCLK, 0);
 	prcmu_clk[PRCMU_TIMCLK] = clk;
 
+	clk = clk_reg_prcmu_gate("ab8500_sysclk", NULL, PRCMU_SYSCLK, 0);
+	prcmu_clk[PRCMU_SYSCLK] = clk;
+
 	clk = clk_reg_prcmu_opp_volt_scalable("sdmmcclk", NULL, PRCMU_SDMMCCLK,
 					100000000, CLK_SET_RATE_GATE);
 	prcmu_clk[PRCMU_SDMMCCLK] = clk;