On Fri, May 13, 2011 at 03:17:50PM +0530, Anirudh Ghayal wrote:
> Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
> Signed-off-by: Anirudh Ghayal <aghayal@xxxxxxxxxxxxxx>
Acked-by: Dmitry Torokhov <dtor@xxxxxxx>
> ---
> drivers/input/keyboard/pmic8xxx-keypad.c | 58 ++++++++++++++++++++++++++++++
> include/linux/input/pmic8xxx-keypad.h | 2 +
> 2 files changed, 60 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/input/keyboard/pmic8xxx-keypad.c b/drivers/input/keyboard/pmic8xxx-keypad.c
> index 0229325..40b02ae 100644
> --- a/drivers/input/keyboard/pmic8xxx-keypad.c
> +++ b/drivers/input/keyboard/pmic8xxx-keypad.c
> @@ -21,6 +21,7 @@
> #include <linux/mutex.h>
>
> #include <linux/mfd/pm8xxx/core.h>
> +#include <linux/mfd/pm8xxx/gpio.h>
> #include <linux/input/pmic8xxx-keypad.h>
>
> #define PM8XXX_MAX_ROWS 18
> @@ -446,6 +447,27 @@ static int __devinit pmic8xxx_kpd_init(struct pmic8xxx_kp *kp)
>
> }
>
> +static int __devinit pmic8xxx_kp_config_gpio(int gpio_start, int num_gpios,
> + struct pmic8xxx_kp *kp, struct pm_gpio *gpio_config)
> +{
> + int rc, i;
> +
> + if (gpio_start < 0 || num_gpios < 0)
> + return -EINVAL;
> +
> + for (i = 0; i < num_gpios; i++) {
> + rc = pm8xxx_gpio_config(gpio_start + i, gpio_config);
> + if (rc) {
> + dev_err(kp->dev, "%s: FAIL pm8xxx_gpio_config():"
> + "for PM GPIO [%d] rc=%d.\n",
> + __func__, gpio_start + i, rc);
> + return rc;
> + }
> + }
> +
> + return 0;
> +}
> +
> static int pmic8xxx_kp_enable(struct pmic8xxx_kp *kp)
> {
> int rc;
> @@ -504,6 +526,27 @@ static int __devinit pmic8xxx_kp_probe(struct platform_device *pdev)
> int rc;
> u8 ctrl_val;
>
> + struct pm_gpio kypd_drv = {
> + .direction = PM_GPIO_DIR_OUT,
> + .output_buffer = PM_GPIO_OUT_BUF_OPEN_DRAIN,
> + .output_value = 0,
> + .pull = PM_GPIO_PULL_NO,
> + .vin_sel = PM_GPIO_VIN_S3,
> + .out_strength = PM_GPIO_STRENGTH_LOW,
> + .function = PM_GPIO_FUNC_1,
> + .inv_int_pol = 1,
> + };
> +
> + struct pm_gpio kypd_sns = {
> + .direction = PM_GPIO_DIR_IN,
> + .pull = PM_GPIO_PULL_UP_31P5,
> + .vin_sel = PM_GPIO_VIN_S3,
> + .out_strength = PM_GPIO_STRENGTH_NO,
> + .function = PM_GPIO_FUNC_NORMAL,
> + .inv_int_pol = 1,
> + };
> +
> +
> if (!pdata || !pdata->num_cols || !pdata->num_rows ||
> pdata->num_cols > PM8XXX_MAX_COLS ||
> pdata->num_rows > PM8XXX_MAX_ROWS ||
> @@ -609,6 +652,20 @@ static int __devinit pmic8xxx_kp_probe(struct platform_device *pdev)
> goto err_get_irq;
> }
>
> + rc = pmic8xxx_kp_config_gpio(pdata->cols_gpio_start,
> + pdata->num_cols, kp, &kypd_sns);
> + if (rc < 0) {
> + dev_err(&pdev->dev, "unable to configure keypad sense lines\n");
> + goto err_gpio_config;
> + }
> +
> + rc = pmic8xxx_kp_config_gpio(pdata->rows_gpio_start,
> + pdata->num_rows, kp, &kypd_drv);
> + if (rc < 0) {
> + dev_err(&pdev->dev, "unable to configure keypad drive lines\n");
> + goto err_gpio_config;
> + }
> +
> rc = request_any_context_irq(kp->key_sense_irq, pmic8xxx_kp_irq,
> IRQF_TRIGGER_RISING, "pmic-keypad", kp);
> if (rc < 0) {
> @@ -645,6 +702,7 @@ err_pmic_reg_read:
> free_irq(kp->key_stuck_irq, NULL);
> err_req_stuck_irq:
> free_irq(kp->key_sense_irq, NULL);
> +err_gpio_config:
> err_get_irq:
> input_free_device(kp->input);
> err_alloc_device:
> diff --git a/include/linux/input/pmic8xxx-keypad.h b/include/linux/input/pmic8xxx-keypad.h
> index fc2ac4c..5f1e2f9 100644
> --- a/include/linux/input/pmic8xxx-keypad.h
> +++ b/include/linux/input/pmic8xxx-keypad.h
> @@ -38,6 +38,8 @@ struct pm8xxx_keypad_platform_data {
>
> unsigned int num_cols;
> unsigned int num_rows;
> + unsigned int rows_gpio_start;
> + unsigned int cols_gpio_start;
>
> unsigned int debounce_ms;
> unsigned int scan_delay_ms;
> --
> Sent by a consultant of the Qualcomm Innovation Center, Inc.\nThe Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
>
--
Dmitry
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