Messages in this thread | | | Subject | Re: [PATCH v6 1/2] media: imx274: use regmap_bulk_write to write multybyte registers | From | Luca Ceresoli <> | Date | Tue, 28 Aug 2018 11:14:47 +0200 |
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Hi Philippe,
thanks for you review.
On 28/08/2018 11:03, Philippe De Muyter wrote: > On Wed, Jul 25, 2018 at 06:24:54PM +0200, Luca Ceresoli wrote: >> Currently 2-bytes and 3-bytes registers are set by very similar >> functions doing the needed shift & mask manipulation, followed by very >> similar for loops setting one byte at a time over I2C. >> >> Replace all of this code by a unique helper function that calls >> regmap_bulk_write(), which has two advantages: >> - sets all the bytes in a unique I2C transaction >> - removes lots of now unused code. >> >> Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> >> Cc: Sakari Ailus <sakari.ailus@linux.intel.com> >> > ... >> +/** >> + * Write a multibyte register. >> + * >> + * Uses a bulk write where possible. >> + * >> + * @priv: Pointer to device structure >> + * @addr: Address of the LSB register. Other registers must be >> + * consecutive, least-to-most significant. >> + * @val: Value to be written to the register (cpu endianness) >> + * @nbytes: Number of bits to write (range: [1..3]) >> + */ >> +static int imx274_write_mbreg(struct stimx274 *priv, u16 addr, u32 val, >> + size_t nbytes) > > Should nbytes be called nbits, or is nbytes a 'Number of bytes' ?
This patch has already been applied, but I sent a fix: https://patchwork.linuxtv.org/patch/51719/
-- Luca
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