From ebdbbf2003ae2342147c87c2a6c6ed8984b9cede Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 20 Nov 2009 11:44:46 +0000 Subject: [PATCH] ARM: PNX4008: convert i2c-pnx to use clk API enable/disable calls clk_set_rate() is not supposed to be used to turn clocks on and off. That's what clk_enable/clk_disable is for. Acked-by: Vitaly Wool Signed-off-by: Russell King --- arch/arm/mach-pnx4008/clock.c | 12 ++++++------ drivers/i2c/busses/i2c-pnx.c | 18 +++++++++--------- 2 files changed, 15 insertions(+), 15 deletions(-) diff --git a/arch/arm/mach-pnx4008/clock.c b/arch/arm/mach-pnx4008/clock.c index 5a1515210969..692625cd2001 100644 --- a/arch/arm/mach-pnx4008/clock.c +++ b/arch/arm/mach-pnx4008/clock.c @@ -639,30 +639,30 @@ static struct clk i2c0_ck = { .name = "i2c0_ck", .parent = &per_ck, .flags = NEEDS_INITIALIZATION, - .round_rate = &on_off_round_rate, - .set_rate = &on_off_set_rate, .enable_shift = 0, .enable_reg = I2CCLKCTRL_REG, + .enable = clk_reg_enable, + .disable = clk_reg_disable, }; static struct clk i2c1_ck = { .name = "i2c1_ck", .parent = &per_ck, .flags = NEEDS_INITIALIZATION, - .round_rate = &on_off_round_rate, - .set_rate = &on_off_set_rate, .enable_shift = 1, .enable_reg = I2CCLKCTRL_REG, + .enable = clk_reg_enable, + .disable = clk_reg_disable, }; static struct clk i2c2_ck = { .name = "i2c2_ck", .parent = &per_ck, .flags = NEEDS_INITIALIZATION, - .round_rate = &on_off_round_rate, - .set_rate = &on_off_set_rate, .enable_shift = 2, .enable_reg = USB_OTG_CLKCTRL_REG, + .enable = clk_reg_enable, + .disable = clk_reg_disable, }; static struct clk spi0_ck = { diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c index 98462671cdf7..29f91774c4df 100644 --- a/drivers/i2c/busses/i2c-pnx.c +++ b/drivers/i2c/busses/i2c-pnx.c @@ -555,8 +555,8 @@ static int i2c_pnx_controller_suspend(struct platform_device *pdev, struct i2c_pnx_data *i2c_pnx = platform_get_drvdata(pdev); struct i2c_pnx_algo_data *alg_data = i2c_pnx->adapter->algo_data; - /* FIXME: disable clock? */ - clk_set_rate(alg_data->clk, 1); + /* FIXME: shouldn't this be clk_disable? */ + clk_enable(alg_data->clk); return 0; } @@ -566,9 +566,7 @@ static int i2c_pnx_controller_resume(struct platform_device *pdev) struct i2c_pnx_data *i2c_pnx = platform_get_drvdata(pdev); struct i2c_pnx_algo_data *alg_data = i2c_pnx->adapter->algo_data; - clk_set_rate(alg_data->clk, 1); - - return 0; + return clk_enable(alg_data->clk); } #else #define i2c_pnx_controller_suspend NULL @@ -630,7 +628,9 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev) goto out_release; } - clk_set_rate(alg_data->clk, 1); + ret = clk_enable(alg_data->clk); + if (ret) + goto out_unmap; /* * Clock Divisor High This value is the number of system clocks @@ -650,7 +650,7 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev) iowrite32(mcntrl_reset, I2C_REG_CTL(alg_data)); if (wait_reset(I2C_PNX_TIMEOUT, alg_data)) { ret = -ENODEV; - goto out_unmap; + goto out_clock; } init_completion(&alg_data->mif.complete); @@ -676,7 +676,7 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev) out_irq: free_irq(alg_data->irq, i2c_pnx->adapter); out_clock: - clk_set_rate(alg_data->clk, 0); + clk_disable(alg_data->clk); out_unmap: iounmap((void *)alg_data->ioaddr); out_release: @@ -697,7 +697,7 @@ static int __devexit i2c_pnx_remove(struct platform_device *pdev) free_irq(alg_data->irq, i2c_pnx->adapter); i2c_del_adapter(adap); - clk_set_rate(alg_data->clk, 0); + clk_disable(alg_data->clk); iounmap((void *)alg_data->ioaddr); release_mem_region(alg_data->base, I2C_PNX_REGION_SIZE); clk_put(alg_data->clk); -- GitLab