[PATCH v8 15/33] crypto: rockchip: use clk_bulk to simplify clock management

Corentin Labbe
2022-07-06T09:51:20Z

rk3328 does not have the same clock names than rk3288, instead of using a complex
clock management, let's use clk_bulk to simplify their handling.

Reviewed-by: John Keeping <john@metanate.com>
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
drivers/crypto/rockchip/rk3288_crypto.c | 66 ++++---------------------
drivers/crypto/rockchip/rk3288_crypto.h | 6 +--
2 files changed, 11 insertions(+), 61 deletions(-)

diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index 399829ef92e0..a635029ac71d 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.c
+++ b/drivers/crypto/rockchip/rk3288_crypto.c
@@ -22,47 +22,16 @@ static int rk_crypto_enable_clk(struct rk_crypto_info *dev)
{
int err;

- err = clk_prepare_enable(dev->sclk);
- if (err) {
- dev_err(dev->dev, "[%s:%d], Couldn't enable clock sclk\n",
- __func__, __LINE__);
- goto err_return;
- }
- err = clk_prepare_enable(dev->aclk);
- if (err) {
- dev_err(dev->dev, "[%s:%d], Couldn't enable clock aclk\n",
- __func__, __LINE__);
- goto err_aclk;
- }
- err = clk_prepare_enable(dev->hclk);
- if (err) {
- dev_err(dev->dev, "[%s:%d], Couldn't enable clock hclk\n",
- __func__, __LINE__);
- goto err_hclk;
- }
- err = clk_prepare_enable(dev->dmaclk);
- if (err) {
- dev_err(dev->dev, "[%s:%d], Couldn't enable clock dmaclk\n",
- __func__, __LINE__);
- goto err_dmaclk;
- }
- return err;
-err_dmaclk:
- clk_disable_unprepare(dev->hclk);
-err_hclk:
- clk_disable_unprepare(dev->aclk);
-err_aclk:
- clk_disable_unprepare(dev->sclk);
-err_return:
+ err = clk_bulk_prepare_enable(dev->num_clks, dev->clks);
+ if (err)
+ dev_err(dev->dev, "Could not enable clock clks\n");
+
return err;
}

static void rk_crypto_disable_clk(struct rk_crypto_info *dev)
{
- clk_disable_unprepare(dev->dmaclk);
- clk_disable_unprepare(dev->hclk);
- clk_disable_unprepare(dev->aclk);
- clk_disable_unprepare(dev->sclk);
+ clk_bulk_disable_unprepare(dev->num_clks, dev->clks);
}

/*
@@ -266,27 +235,10 @@ static int rk_crypto_probe(struct platform_device *pdev)
goto err_crypto;
}

- crypto_info->aclk = devm_clk_get(&pdev->dev, "aclk");
- if (IS_ERR(crypto_info->aclk)) {
- err = PTR_ERR(crypto_info->aclk);
- goto err_crypto;
- }
-
- crypto_info->hclk = devm_clk_get(&pdev->dev, "hclk");
- if (IS_ERR(crypto_info->hclk)) {
- err = PTR_ERR(crypto_info->hclk);
- goto err_crypto;
- }
-
- crypto_info->sclk = devm_clk_get(&pdev->dev, "sclk");
- if (IS_ERR(crypto_info->sclk)) {
- err = PTR_ERR(crypto_info->sclk);
- goto err_crypto;
- }
-
- crypto_info->dmaclk = devm_clk_get(&pdev->dev, "apb_pclk");
- if (IS_ERR(crypto_info->dmaclk)) {
- err = PTR_ERR(crypto_info->dmaclk);
+ crypto_info->num_clks = devm_clk_bulk_get_all(&pdev->dev,
+ &crypto_info->clks);
+ if (crypto_info->num_clks < 3) {
+ err = -EINVAL;
goto err_crypto;
}

diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h
index ddbb9246ce16..28bf09fe1c1d 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.h
+++ b/drivers/crypto/rockchip/rk3288_crypto.h
@@ -190,10 +190,8 @@

struct rk_crypto_info {
struct device *dev;
- struct clk *aclk;
- struct clk *hclk;
- struct clk *sclk;
- struct clk *dmaclk;
+ struct clk_bulk_data *clks;
+ int num_clks;
struct reset_control *rst;
void __iomem *reg;
int irq;