ARM: OMAP1: Make 770 LCD work

Make 770 LCD work by adding clk_add_alias().
Also remove the old unused functions.

Note that the clk_add_alias() could probably be moved
to arch/arm/clkdev.c later on.

Cc: linux-fbdev-devel@lists.sourceforge.net
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com

1 files changed, 10 insertions, 16 deletions

diff --git a/drivers/video/omap/hwa742.c b/drivers/video/omap/hwa742.c
index 8aa6e47202b9..5d4f34887a22 100644
--- a/drivers/video/omap/hwa742.c
+++ b/drivers/video/omap/hwa742.c
@@ -133,8 +133,7 @@ struct {
         struct lcd_ctrl_extif   *extif;
         struct lcd_ctrl         *int_ctrl;
 
-        void                    (*power_up)(struct device *dev);
-        void                    (*power_down)(struct device *dev);
+        struct clk              *sys_ck;
 } hwa742;
 
 struct lcd_ctrl hwa742_ctrl;
@@ -915,14 +914,13 @@ static void hwa742_suspend(void)
         hwa742_set_update_mode(OMAPFB_UPDATE_DISABLED);
         /* Enable sleep mode */
         hwa742_write_reg(HWA742_POWER_SAVE, 1 << 1);
-        if (hwa742.power_down != NULL)
-                hwa742.power_down(hwa742.fbdev->dev);
+        clk_disable(hwa742.sys_ck);
 }
 
 static void hwa742_resume(void)
 {
-        if (hwa742.power_up != NULL)
-                hwa742.power_up(hwa742.fbdev->dev);
+        clk_enable(hwa742.sys_ck);
+
         /* Disable sleep mode */
         hwa742_write_reg(HWA742_POWER_SAVE, 0);
         while (1) {
@@ -955,14 +953,13 @@ static int hwa742_init(struct omapfb_device *fbdev, int ext_mode,
         omapfb_conf = fbdev->dev->platform_data;
         ctrl_conf = omapfb_conf->ctrl_platform_data;
 
-        if (ctrl_conf == NULL || ctrl_conf->get_clock_rate == NULL) {
+        if (ctrl_conf == NULL) {
                 dev_err(fbdev->dev, "HWA742: missing platform data\n");
                 r = -ENOENT;
                 goto err1;
         }
 
-        hwa742.power_down = ctrl_conf->power_down;
-        hwa742.power_up = ctrl_conf->power_up;
+        hwa742.sys_ck = clk_get(NULL, "hwa_sys_ck");
 
         spin_lock_init(&hwa742.req_lock);
 
@@ -972,12 +969,11 @@ static int hwa742_init(struct omapfb_device *fbdev, int ext_mode,
         if ((r = hwa742.extif->init(fbdev)) < 0)
                 goto err2;
 
-        ext_clk = ctrl_conf->get_clock_rate(fbdev->dev);
+        ext_clk = clk_get_rate(hwa742.sys_ck);
         if ((r = calc_extif_timings(ext_clk, &extif_mem_div)) < 0)
                 goto err3;
         hwa742.extif->set_timings(&hwa742.reg_timings);
-        if (hwa742.power_up != NULL)
-                hwa742.power_up(fbdev->dev);
+        clk_enable(hwa742.sys_ck);
 
         calc_hwa742_clk_rates(ext_clk, &sys_clk, &pix_clk);
         if ((r = calc_extif_timings(sys_clk, &extif_mem_div)) < 0)
@@ -1040,8 +1036,7 @@ static int hwa742_init(struct omapfb_device *fbdev, int ext_mode,
 
         return 0;
 err4:
-        if (hwa742.power_down != NULL)
-                hwa742.power_down(fbdev->dev);
+        clk_disable(hwa742.sys_ck);
 err3:
         hwa742.extif->cleanup();
 err2:
@@ -1055,8 +1050,7 @@ static void hwa742_cleanup(void)
         hwa742_set_update_mode(OMAPFB_UPDATE_DISABLED);
         hwa742.extif->cleanup();
         hwa742.int_ctrl->cleanup();
-        if (hwa742.power_down != NULL)
-                hwa742.power_down(hwa742.fbdev->dev);
+        clk_disable(hwa742.sys_ck);
 }
 
 struct lcd_ctrl hwa742_ctrl = {