From c0df5bf5369ec5d12d781491c95e3207ec5ee2b7 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 6 Nov 2013 16:46:24 -0700 Subject: [PATCH] staging: nvec: use reset framework Tegra's clock driver now provides an implementation of the common reset API (include/linux/reset.h). Use this instead of the old Tegra- specific API; that will soon be removed. Signed-off-by: Stephen Warren Acked-by: Marc Dietrich Acked-by: Greg Kroah-Hartman Reviewed-by: Thierry Reding --- drivers/staging/nvec/nvec.c | 11 ++++++++--- drivers/staging/nvec/nvec.h | 5 ++++- 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c index 49ea76b3435d..986870593b0c 100644 --- a/drivers/staging/nvec/nvec.c +++ b/drivers/staging/nvec/nvec.c @@ -36,7 +36,6 @@ #include #include #include -#include #include "nvec.h" @@ -734,9 +733,9 @@ static void tegra_init_i2c_slave(struct nvec_chip *nvec) clk_prepare_enable(nvec->i2c_clk); - tegra_periph_reset_assert(nvec->i2c_clk); + reset_control_assert(nvec->rst); udelay(2); - tegra_periph_reset_deassert(nvec->i2c_clk); + reset_control_deassert(nvec->rst); val = I2C_CNFG_NEW_MASTER_SFM | I2C_CNFG_PACKET_MODE_EN | (0x2 << I2C_CNFG_DEBOUNCE_CNT_SHIFT); @@ -837,6 +836,12 @@ static int tegra_nvec_probe(struct platform_device *pdev) return -ENODEV; } + nvec->rst = devm_reset_control_get(&pdev->dev, "i2c"); + if (IS_ERR(nvec->rst)) { + dev_err(nvec->dev, "failed to get controller reset\n"); + return PTR_ERR(nvec->rst); + } + nvec->base = base; nvec->irq = res->start; nvec->i2c_clk = i2c_clk; diff --git a/drivers/staging/nvec/nvec.h b/drivers/staging/nvec/nvec.h index e880518935fb..e271375053fa 100644 --- a/drivers/staging/nvec/nvec.h +++ b/drivers/staging/nvec/nvec.h @@ -23,6 +23,7 @@ #include #include #include +#include #include #include @@ -109,7 +110,8 @@ struct nvec_msg { * @irq: The IRQ of the I2C device * @i2c_addr: The address of the I2C slave * @base: The base of the memory mapped region of the I2C device - * @clk: The clock of the I2C device + * @i2c_clk: The clock of the I2C device + * @rst: The reset of the I2C device * @notifier_list: Notifiers to be called on received messages, see * nvec_register_notifier() * @rx_data: Received messages that have to be processed @@ -139,6 +141,7 @@ struct nvec_chip { int i2c_addr; void __iomem *base; struct clk *i2c_clk; + struct reset_control *rst; struct atomic_notifier_head notifier_list; struct list_head rx_data, tx_data; struct notifier_block nvec_status_notifier; -- 2.20.1