video: exynos_fb: Make fimd_ctrl global

fimd_ctrl variable was redundantly defined across all the functions in
the driver even though it contains just the same address. We make it
global and initialize it in exynos_fimd_lcd_init. From then on, other
funtions can use the data in the global variable.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

drivers/video/exynos_fimd.c

@@ -32,6 +32,7 @@
 
 static unsigned long *lcd_base_addr;
 static vidinfo_t *pvid;
+static struct exynos_fb *fimd_ctrl;
 
 void exynos_fimd_lcd_init_mem(u_long screen_base, u_long fb_size,
 		u_long palette_size)
@@ -41,8 +42,6 @@ void exynos_fimd_lcd_init_mem(u_long screen_base, u_long fb_size,
 
 static void exynos_fimd_set_dualrgb(unsigned int enabled)
 {
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
 	unsigned int cfg = 0;
 
 	if (enabled) {
@@ -59,9 +58,6 @@ static void exynos_fimd_set_dualrgb(unsigned int enabled)
 
 static void exynos_fimd_set_dp_clkcon(unsigned int enabled)
 {
-
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
 	unsigned int cfg = 0;
 
 	if (enabled)
@@ -73,8 +69,6 @@ static void exynos_fimd_set_dp_clkcon(unsigned int enabled)
 static void exynos_fimd_set_par(unsigned int win_id)
 {
 	unsigned int cfg = 0;
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
 
 	/* set window control */
 	cfg = readl((unsigned int)&fimd_ctrl->wincon0 +
@@ -126,8 +120,6 @@ static void exynos_fimd_set_par(unsigned int win_id)
 static void exynos_fimd_set_buffer_address(unsigned int win_id)
 {
 	unsigned long start_addr, end_addr;
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
 
 	start_addr = (unsigned long)lcd_base_addr;
 	end_addr = start_addr + ((pvid->vl_col * (NBITS(pvid->vl_bpix) / 8)) *
@@ -144,8 +136,6 @@ static void exynos_fimd_set_clock(vidinfo_t *pvid)
 	unsigned int cfg = 0, div = 0, remainder, remainder_div;
 	unsigned long pixel_clock;
 	unsigned long long src_clock;
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
 
 	if (pvid->dual_lcd_enabled) {
 		pixel_clock = pvid->vl_freq *
@@ -197,8 +187,6 @@ static void exynos_fimd_set_clock(vidinfo_t *pvid)
 void exynos_set_trigger(void)
 {
 	unsigned int cfg = 0;
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
 
 	cfg = readl(&fimd_ctrl->trigcon);
 
@@ -211,8 +199,6 @@ int exynos_is_i80_frame_done(void)
 {
 	unsigned int cfg = 0;
 	int status;
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
 
 	cfg = readl(&fimd_ctrl->trigcon);
 
@@ -226,8 +212,6 @@ int exynos_is_i80_frame_done(void)
 static void exynos_fimd_lcd_on(void)
 {
 	unsigned int cfg = 0;
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
 
 	/* display on */
 	cfg = readl(&fimd_ctrl->vidcon0);
@@ -238,8 +222,6 @@ static void exynos_fimd_lcd_on(void)
 static void exynos_fimd_window_on(unsigned int win_id)
 {
 	unsigned int cfg = 0;
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
 
 	/* enable window */
 	cfg = readl((unsigned int)&fimd_ctrl->wincon0 +
@@ -256,8 +238,6 @@ static void exynos_fimd_window_on(unsigned int win_id)
 void exynos_fimd_lcd_off(void)
 {
 	unsigned int cfg = 0;
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
 
 	cfg = readl(&fimd_ctrl->vidcon0);
 	cfg &= (EXYNOS_VIDCON0_ENVID_DISABLE | EXYNOS_VIDCON0_ENVID_F_DISABLE);
@@ -267,8 +247,6 @@ void exynos_fimd_lcd_off(void)
 void exynos_fimd_window_off(unsigned int win_id)
 {
 	unsigned int cfg = 0;
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
 
 	cfg = readl((unsigned int)&fimd_ctrl->wincon0 +
 			EXYNOS_WINCON(win_id));
@@ -286,8 +264,7 @@ void exynos_fimd_lcd_init(vidinfo_t *vid)
 {
 	unsigned int cfg = 0, rgb_mode;
 	unsigned int offset;
-	struct exynos_fb *fimd_ctrl =
-		(struct exynos_fb *)samsung_get_base_fimd();
+	fimd_ctrl = (struct exynos_fb *)samsung_get_base_fimd();
 
 	offset = exynos_fimd_get_base_offset();