MLK-12861-1 ARM: imx: support runtime clock management on i.mx7d when…

… M4 is enabled

For i.MX7D, current runtime clock management code will skip all
PLL/PFD/GATE enable/disable when M4 is enabled, this is NOT good
for power number in low power idle and audio playback, as M4 only
uses one high speed PFD which is from system PLL, it is never
disabled runtimely, so we can just enable the hardware operation of
PLL/PFD/GATE for A7.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

arch/arm/mach-imx/clk-gate2.c

@@ -19,6 +19,7 @@
 #include <linux/string.h>
 #include "clk.h"
 #include "common.h"
+#include "hardware.h"
 
 /**
  * DOC: basic gatable clock which can gate and ungate it's ouput
@@ -58,7 +59,7 @@ static void clk_gate2_do_shared_clks(struct clk_hw *hw, bool enable)
 {
 	struct clk_gate2 *gate = to_clk_gate2(hw);
 
-	if (imx_src_is_m4_enabled()) {
+	if (imx_src_is_m4_enabled() && cpu_is_imx6sx()) {
 #ifdef CONFIG_SOC_IMX6SX
 		if (!amp_power_mutex || !shared_mem) {
 			if (enable)

arch/arm/mach-imx/clk-pfd.c

@@ -18,6 +18,7 @@
 #include <linux/err.h>
 #include "clk.h"
 #include "common.h"
+#include "hardware.h"
 
 /**
  * struct clk_pfd - IMX PFD clock
@@ -53,7 +54,7 @@ static void clk_pfd_do_shared_clks(struct clk_hw *hw, bool enable)
 {
 	struct clk_pfd *pfd = to_clk_pfd(hw);
 
-	if (imx_src_is_m4_enabled()) {
+	if (imx_src_is_m4_enabled() && cpu_is_imx6sx()) {
 #ifdef CONFIG_SOC_IMX6SX
 		if (!amp_power_mutex || !shared_mem) {
 			if (enable)

arch/arm/mach-imx/clk-pllv3.c

@@ -108,7 +108,7 @@ static int clk_pllv3_do_hardware(struct clk_hw *hw, bool enable)
 
 static void clk_pllv3_do_shared_clks(struct clk_hw *hw, bool enable)
 {
-	if (imx_src_is_m4_enabled()) {
+	if (imx_src_is_m4_enabled() && cpu_is_imx6sx()) {
 #ifdef CONFIG_SOC_IMX6SX
 		if (!amp_power_mutex || !shared_mem) {
 			if (enable)