Input: omap-keypad: Remove dependencies to mach includes

Remove support for omap2+ as it's no longer needed since
it's using matrix-keypad. This way we can remove depency
to plat and mach headers which is needed for ARM common
zImage support.

Also remove INT_KEYBOARD by using omap_kp->irq.

Note that this patch depends on an earlier patch
"ARM: OMAP: Move gpio.h to include/linux/platform_data".

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Acked-by: Sourav Poddar <sourav.poddar@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

2 files changed, 35 insertions, 121 deletions

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index c50fa75416f8..b4b65af8612a 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -533,7 +533,7 @@ config KEYBOARD_DAVINCI
 
 config KEYBOARD_OMAP
         tristate "TI OMAP keypad support"
-        depends on (ARCH_OMAP1 || ARCH_OMAP2)
+        depends on ARCH_OMAP1
         select INPUT_MATRIXKMAP
         help
           Say Y here if you want to use the OMAP keypad.
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index a0222db4dc86..2bda5f0b9c6e 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -35,13 +35,9 @@
 #include <linux/mutex.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
-#include <asm/gpio.h>
+#include <linux/gpio.h>
+#include <linux/platform_data/gpio-omap.h>
 #include <plat/keypad.h>
-#include <plat/menelaus.h>
-#include <asm/irq.h>
-#include <mach/hardware.h>
-#include <asm/io.h>
-#include <plat/mux.h>
 
 #undef NEW_BOARD_LEARNING_MODE
 
@@ -96,28 +92,8 @@ static u8 get_row_gpio_val(struct omap_kp *omap_kp)
 
 static irqreturn_t omap_kp_interrupt(int irq, void *dev_id)
 {
-        struct omap_kp *omap_kp = dev_id;
-
         /* disable keyboard interrupt and schedule for handling */
-        if (cpu_is_omap24xx()) {
-                int i;
-
-                for (i = 0; i < omap_kp->rows; i++) {
-                        int gpio_irq = gpio_to_irq(row_gpios[i]);
-                        /*
-                         * The interrupt which we're currently handling should
-                         * be disabled _nosync() to avoid deadlocks waiting
-                         * for this handler to complete.  All others should
-                         * be disabled the regular way for SMP safety.
-                         */
-                        if (gpio_irq == irq)
-                                disable_irq_nosync(gpio_irq);
-                        else
-                                disable_irq(gpio_irq);
-                }
-        } else
-                /* disable keyboard interrupt and schedule for handling */
-                omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+        omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
 
         tasklet_schedule(&kp_tasklet);
 
@@ -133,33 +109,22 @@ static void omap_kp_scan_keypad(struct omap_kp *omap_kp, unsigned char *state)
 {
         int col = 0;
 
-        /* read the keypad status */
-        if (cpu_is_omap24xx()) {
-                /* read the keypad status */
-                for (col = 0; col < omap_kp->cols; col++) {
-                        set_col_gpio_val(omap_kp, ~(1 << col));
-                        state[col] = ~(get_row_gpio_val(omap_kp)) & 0xff;
-                }
-                set_col_gpio_val(omap_kp, 0);
-
-        } else {
-                /* disable keyboard interrupt and schedule for handling */
-                omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+        /* disable keyboard interrupt and schedule for handling */
+        omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
 
-                /* read the keypad status */
-                omap_writew(0xff, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
-                for (col = 0; col < omap_kp->cols; col++) {
-                        omap_writew(~(1 << col) & 0xff,
-                                    OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+        /* read the keypad status */
+        omap_writew(0xff, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+        for (col = 0; col < omap_kp->cols; col++) {
+                omap_writew(~(1 << col) & 0xff,
+                            OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
 
-                        udelay(omap_kp->delay);
+                udelay(omap_kp->delay);
 
-                        state[col] = ~omap_readw(OMAP1_MPUIO_BASE +
-                                                 OMAP_MPUIO_KBR_LATCH) & 0xff;
-                }
-                omap_writew(0x00, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
-                udelay(2);
+                state[col] = ~omap_readw(OMAP1_MPUIO_BASE +
+                                         OMAP_MPUIO_KBR_LATCH) & 0xff;
         }
+        omap_writew(0x00, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+        udelay(2);
 }
 
 static void omap_kp_tasklet(unsigned long data)
@@ -222,14 +187,8 @@ static void omap_kp_tasklet(unsigned long data)
                 mod_timer(&omap_kp_data->timer, jiffies + delay);
         } else {
                 /* enable interrupts */
-                if (cpu_is_omap24xx()) {
-                        int i;
-                        for (i = 0; i < omap_kp_data->rows; i++)
-                                enable_irq(gpio_to_irq(row_gpios[i]));
-                } else {
-                        omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
-                        kp_cur_group = -1;
-                }
+                omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+                kp_cur_group = -1;
         }
 }
 
@@ -242,6 +201,7 @@ static ssize_t omap_kp_enable_show(struct device *dev,
 static ssize_t omap_kp_enable_store(struct device *dev, struct device_attribute *attr,
                                     const char *buf, size_t count)
 {
+        struct omap_kp *omap_kp = dev_get_drvdata(dev);
         int state;
 
         if (sscanf(buf, "%u", &state) != 1)
@@ -253,9 +213,9 @@ static ssize_t omap_kp_enable_store(struct device *dev, struct device_attribute
         mutex_lock(&kp_enable_mutex);
         if (state != kp_enable) {
                 if (state)
-                        enable_irq(INT_KEYBOARD);
+                        enable_irq(omap_kp->irq);
                 else
-                        disable_irq(INT_KEYBOARD);
+                        disable_irq(omap_kp->irq);
                 kp_enable = state;
         }
         mutex_unlock(&kp_enable_mutex);
@@ -289,7 +249,7 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
         struct omap_kp *omap_kp;
         struct input_dev *input_dev;
         struct omap_kp_platform_data *pdata =  pdev->dev.platform_data;
-        int i, col_idx, row_idx, irq_idx, ret;
+        int i, col_idx, row_idx, ret;
         unsigned int row_shift, keycodemax;
 
         if (!pdata->rows || !pdata->cols || !pdata->keymap_data) {
@@ -314,8 +274,7 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
         omap_kp->input = input_dev;
 
         /* Disable the interrupt for the MPUIO keyboard */
-        if (!cpu_is_omap24xx())
-                omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+        omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
 
         if (pdata->delay)
                 omap_kp->delay = pdata->delay;
@@ -328,31 +287,8 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
         omap_kp->rows = pdata->rows;
         omap_kp->cols = pdata->cols;
 
-        if (cpu_is_omap24xx()) {
-                /* Cols: outputs */
-                for (col_idx = 0; col_idx < omap_kp->cols; col_idx++) {
-                        if (gpio_request(col_gpios[col_idx], "omap_kp_col") < 0) {
-                                printk(KERN_ERR "Failed to request"
-                                       "GPIO%d for keypad\n",
-                                       col_gpios[col_idx]);
-                                goto err1;
-                        }
-                        gpio_direction_output(col_gpios[col_idx], 0);
-                }
-                /* Rows: inputs */
-                for (row_idx = 0; row_idx < omap_kp->rows; row_idx++) {
-                        if (gpio_request(row_gpios[row_idx], "omap_kp_row") < 0) {
-                                printk(KERN_ERR "Failed to request"
-                                       "GPIO%d for keypad\n",
-                                       row_gpios[row_idx]);
-                                goto err2;
-                        }
-                        gpio_direction_input(row_gpios[row_idx]);
-                }
-        } else {
-                col_idx = 0;
-                row_idx = 0;
-        }
+        col_idx = 0;
+        row_idx = 0;
 
         setup_timer(&omap_kp->timer, omap_kp_timer, (unsigned long)omap_kp);
 
@@ -394,27 +330,16 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
 
         /* scan current status and enable interrupt */
         omap_kp_scan_keypad(omap_kp, keypad_state);
-        if (!cpu_is_omap24xx()) {
-                omap_kp->irq = platform_get_irq(pdev, 0);
-                if (omap_kp->irq >= 0) {
-                        if (request_irq(omap_kp->irq, omap_kp_interrupt, 0,
-                                        "omap-keypad", omap_kp) < 0)
-                                goto err4;
-                }
-                omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
-        } else {
-                for (irq_idx = 0; irq_idx < omap_kp->rows; irq_idx++) {
-                        if (request_irq(gpio_to_irq(row_gpios[irq_idx]),
-                                        omap_kp_interrupt,
-                                        IRQF_TRIGGER_FALLING,
-                                        "omap-keypad", omap_kp) < 0)
-                                goto err5;
-                }
+        omap_kp->irq = platform_get_irq(pdev, 0);
+        if (omap_kp->irq >= 0) {
+                if (request_irq(omap_kp->irq, omap_kp_interrupt, 0,
+                                "omap-keypad", omap_kp) < 0)
+                        goto err4;
         }
+        omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+
         return 0;
-err5:
-        for (i = irq_idx - 1; i >=0; i--)
-                free_irq(row_gpios[i], omap_kp);
+
 err4:
         input_unregister_device(omap_kp->input);
         input_dev = NULL;
@@ -423,7 +348,6 @@ err3:
 err2:
         for (i = row_idx - 1; i >=0; i--)
                 gpio_free(row_gpios[i]);
-err1:
         for (i = col_idx - 1; i >=0; i--)
                 gpio_free(col_gpios[i]);
 
@@ -439,18 +363,8 @@ static int __devexit omap_kp_remove(struct platform_device *pdev)
 
         /* disable keypad interrupt handling */
         tasklet_disable(&kp_tasklet);
-        if (cpu_is_omap24xx()) {
-                int i;
-                for (i = 0; i < omap_kp->cols; i++)
-                        gpio_free(col_gpios[i]);
-                for (i = 0; i < omap_kp->rows; i++) {
-                        gpio_free(row_gpios[i]);
-                        free_irq(gpio_to_irq(row_gpios[i]), omap_kp);
-                }
-        } else {
-                omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
-                free_irq(omap_kp->irq, omap_kp);
-        }
+        omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+        free_irq(omap_kp->irq, omap_kp);
 
         del_timer_sync(&omap_kp->timer);
         tasklet_kill(&kp_tasklet);