Re: [PATCH v3] Add driver for the si514 clock generator chip

From: Stephen Boyd
Date: Fri Oct 02 2015 - 15:18:13 EST


On 10/02, Mike Looijmans wrote:
> This patch adds the driver and devicetree documentation for the
> Silicon Labs SI514 clock generator chip. This is an I2C controlled
> oscillator capable of generating clock signals ranging from 100kHz
> to 250MHz.
>
> Signed-off-by: Mike Looijmans <mike.looijmans@xxxxxxxx>
> ---

Applied to clk-next. We can handle any stuff about assigned rates
in a follow up patch.

Also, I squashed in this for some cleanup.

diff --git a/drivers/clk/clk-si514.c b/drivers/clk/clk-si514.c
index 779aebcd884b..6af7dce54241 100644
--- a/drivers/clk/clk-si514.c
+++ b/drivers/clk/clk-si514.c
@@ -16,7 +16,6 @@
* GNU General Public License for more details.
*/

-#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/delay.h>
#include <linux/module.h>
@@ -87,14 +86,11 @@ static int si514_get_muldiv(struct clk_si514 *data,
if (err)
return err;

- settings->m_frac =
- reg[0] |
- ((u32)reg[1] << 8) |
- ((u32)reg[2] << 16) |
- ((u32)(reg[3] & 0x1F) << 24);
- settings->m_int = ((reg[4] & 0x3f) << 3) | (reg[3] >> 5);
+ settings->m_frac = reg[0] | reg[1] << 8 | reg[2] << 16 |
+ (reg[3] & 0x1F) << 24;
+ settings->m_int = (reg[4] & 0x3f) << 3 | reg[3] >> 5;
settings->ls_div_bits = (reg[6] >> 4) & 0x07;
- settings->hs_div = ((u16)(reg[6] & 0x03) << 8) | reg[5];
+ settings->hs_div = (reg[6] & 0x03) << 8 | reg[5];
return 0;
}

@@ -132,7 +128,7 @@ static int si514_set_muldiv(struct clk_si514 *data,
reg[0] = settings->m_frac;
reg[1] = settings->m_frac >> 8;
reg[2] = settings->m_frac >> 16;
- reg[3] = (settings->m_frac >> 24) | (settings->m_int << 5);
+ reg[3] = settings->m_frac >> 24 | settings->m_int << 5;
reg[4] = settings->m_int >> 3;
reg[5] = settings->hs_div;
reg[6] = (settings->hs_div >> 8) | (settings->ls_div_bits << 4);
--
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