Commit 98e2c4ef authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Greg Kroah-Hartman
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nvmem: mtk-efuse: support minimum one byte access stride and granularity 



In order to support nvmem bits property, should support minimum 1 byte
read stride and minimum 1 byte read granularity at the same time.

Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211209174235.14049-4-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9d87b0ac

drivers/nvmem/mtk-efuse.c

+7 −6
Original line number Diff line number Diff line
@@ -19,11 +19,12 @@ static int mtk_reg_read(void *context, 
			unsigned int reg, void *_val, size_t bytes)

{

	struct mtk_efuse_priv *priv = context;

	u32 *val = _val;

	int i = 0, words = bytes / 4;

	void __iomem *addr = priv->base + reg;

	u8 *val = _val;

	int i;



	while (words--)

		*val++ = readl(priv->base + reg + (i++ * 4));

	for (i = 0; i < bytes; i++, val++)

		*val = readb(addr + i);



	return 0;

}
@@ -45,8 +46,8 @@ static int mtk_efuse_probe(struct platform_device *pdev) 
	if (IS_ERR(priv->base))

		return PTR_ERR(priv->base);



	econfig.stride = 4;

	econfig.word_size = 4;

	econfig.stride = 1;

	econfig.word_size = 1;

	econfig.reg_read = mtk_reg_read;

	econfig.size = resource_size(res);

	econfig.priv = priv;