diff options
| author | Richard Zhu <Richard.Zhu@freescale.com> | 2015-03-31 11:05:18 +0800 |
|---|---|---|
| committer | guoyin.chen <guoyin.chen@freescale.com> | 2015-05-08 17:24:51 +0800 |
| commit | 8dccc2010e6ff39b59047f0d2e3a9bb08f6eec36 (patch) | |
| tree | 73237b06bd7b051447e9176d790dd0eb50862902 /drivers | |
| parent | 94f1f2ff77fd7dd3d187f946c66e2e7cad18fdb9 (diff) | |
MLK-10512-5 mcc: sema4: enable sema4 on imx7d
- enable sema4 on imx7d, and verified on imx7d mcc
pingpong tests.
Signed-off-by: Richard Zhu <Richard.Zhu@freescale.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/char/imx_amp/imx_sema4.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/char/imx_amp/imx_sema4.c b/drivers/char/imx_amp/imx_sema4.c index 4228eb5b87ce..7d88e518636f 100644 --- a/drivers/char/imx_amp/imx_sema4.c +++ b/drivers/char/imx_amp/imx_sema4.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Copyright (C) 2014-2015 Freescale Semiconductor, Inc. */ /* @@ -11,13 +11,14 @@ * http://www.gnu.org/copyleft/gpl.html */ -#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/err.h> #include <linux/interrupt.h> #include <linux/io.h> -#include <linux/err.h> #include <linux/mcc_config_linux.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/platform_device.h> #include <linux/wait.h> #include <linux/sched.h> #include <linux/slab.h> @@ -326,6 +327,7 @@ static irqreturn_t imx_sema4_isr(int irq, void *dev_id) static const struct of_device_id imx_sema4_dt_ids[] = { { .compatible = "fsl,imx6sx-sema4", }, + { .compatible = "fsl,imx7d-sema4", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, imx_sema4_dt_ids); @@ -334,6 +336,7 @@ static int imx_sema4_probe(struct platform_device *pdev) { struct resource *res; int ret; + struct device_node *np = pdev->dev.of_node; imx6_sema4 = devm_kzalloc(&pdev->dev, sizeof(*imx6_sema4), GFP_KERNEL); if (!imx6_sema4) @@ -371,6 +374,23 @@ static int imx_sema4_probe(struct platform_device *pdev) goto err; } + ret = of_device_is_compatible(np, "fsl,imx7d-sema4"); + if (ret) { + imx6_sema4->clk = devm_clk_get(&pdev->dev, "sema4"); + if (IS_ERR(imx6_sema4->clk)) { + dev_err(&pdev->dev, + "sema4 clock source missing or invalid\n"); + return PTR_ERR(imx6_sema4->clk); + } else { + ret = clk_prepare_enable(imx6_sema4->clk); + if (ret) { + dev_err(&pdev->dev, + "unable to enable sema4 clock\n"); + return ret; + } + } + } + platform_set_drvdata(pdev, imx6_sema4); err: |