On 06/07/2017 05:32 AM, Enric Balletbo i Serra wrote:
> The driver boots only via device tree but currently all the MFD sub-devices
> are instatiated independently of the device tree configuration, i.e
> although tps65217-charger is disabled by default it's instantiated by the
> MFD driver.
>
> Instead of register all sub-devices, if the TPS65217 device tree node has a
> sub-node enabled, try to instatiate them as MFD sub-devices but not
> instantiate sub-nodes that are not enabled.
>
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
> ---
> drivers/mfd/tps65217.c | 56 +++++++-------------------------------------
> include/linux/mfd/tps65217.h | 6 -----
> 2 files changed, 9 insertions(+), 53 deletions(-)
>
> diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c
> index f769c7d..9effdda 100644
> --- a/drivers/mfd/tps65217.c
> +++ b/drivers/mfd/tps65217.c
> @@ -33,14 +33,7 @@
> #include <linux/mfd/core.h>
> #include <linux/mfd/tps65217.h>
>
> -static struct resource charger_resources[] = {
> - DEFINE_RES_IRQ_NAMED(TPS65217_IRQ_AC, "AC"),
> - DEFINE_RES_IRQ_NAMED(TPS65217_IRQ_USB, "USB"),
> -};
> -
> -static struct resource pb_resources[] = {
> - DEFINE_RES_IRQ_NAMED(TPS65217_IRQ_PB, "PB"),
> -};
May be I messed smth, but how about interrupts for charger and pwrbutton?
> +#define TPS65217_NUM_IRQ 3
>
> static void tps65217_irq_lock(struct irq_data *data)
> {
> @@ -86,29 +79,6 @@ static struct irq_chip tps65217_irq_chip = {
> .irq_disable = tps65217_irq_disable,
> };
>
> -static struct mfd_cell tps65217s[] = {
> - {
> - .name = "tps65217-pmic",
> - .of_compatible = "ti,tps65217-pmic",
> - },
> - {
> - .name = "tps65217-bl",
> - .of_compatible = "ti,tps65217-bl",
> - },
> - {
> - .name = "tps65217-charger",
> - .num_resources = ARRAY_SIZE(charger_resources),
> - .resources = charger_resources,
> - .of_compatible = "ti,tps65217-charger",
> - },
> - {
> - .name = "tps65217-pwrbutton",
> - .num_resources = ARRAY_SIZE(pb_resources),
> - .resources = pb_resources,
> - .of_compatible = "ti,tps65217-pwrbutton",
> - },
> -};
> -
> static irqreturn_t tps65217_irq_thread(int irq, void *data)
> {
> struct tps65217 *tps = data;
> @@ -359,23 +329,8 @@ static int tps65217_probe(struct i2c_client *client,
> return ret;
> }
>
> - if (client->irq) {
> + if (client->irq)
> tps65217_irq_init(tps, client->irq);
> - } else {
> - int i;
> -
> - /* Don't tell children about IRQ resources which won't fire */
> - for (i = 0; i < ARRAY_SIZE(tps65217s); i++)
> - tps65217s[i].num_resources = 0;
> - }
> -
> - ret = devm_mfd_add_devices(tps->dev, -1, tps65217s,
> - ARRAY_SIZE(tps65217s), NULL, 0,
> - tps->irq_domain);
> - if (ret < 0) {
> - dev_err(tps->dev, "mfd_add_devices failed: %d\n", ret);
> - return ret;
> - }
And as I remember there was a request to use mfd_add_devices()
and not of_platform_populate() for mfd sub-devices instantiation.
>
> ret = tps65217_reg_read(tps, TPS65217_REG_CHIPID, &version);
> if (ret < 0) {
> @@ -384,6 +339,13 @@ static int tps65217_probe(struct i2c_client *client,
> return ret;
> }
>
> + ret = of_platform_populate(client->dev.of_node, NULL, NULL,
> + &client->dev);
> + if (ret) {
> + dev_err(&client->dev, "Failed to register sub-devices\n");
> + return ret;
> + }
> +
> /* Set the PMIC to shutdown on PWR_EN toggle */
> if (status_off) {
> ret = tps65217_set_bits(tps, TPS65217_REG_STATUS,
> diff --git a/include/linux/mfd/tps65217.h b/include/linux/mfd/tps65217.h
> index eac2857..dfc51f5 100644
> --- a/include/linux/mfd/tps65217.h
> +++ b/include/linux/mfd/tps65217.h
> @@ -236,12 +236,6 @@ struct tps65217_bl_pdata {
> int dft_brightness;
> };
>
> -/* Interrupt numbers */
> -#define TPS65217_IRQ_USB 0
> -#define TPS65217_IRQ_AC 1
> -#define TPS65217_IRQ_PB 2
> -#define TPS65217_NUM_IRQ 3
> -
> /**
> * struct tps65217_board - packages regulator init data
> * @tps65217_regulator_data: regulator initialization values
>
--
regards,
-grygorii
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