[U-Boot] [PATCH v2] mx6ul_14x14_evk: Simplify the PMIC register writes

Peng Fan peng.fan at nxp.com
Fri Feb 15 05:10:18 UTC 2019



> -----Original Message-----
> From: Fabio Estevam [mailto:festevam at gmail.com]
> Sent: 2019年2月14日 21:36
> To: sbabic at denx.de
> Cc: u-boot at lists.denx.de; Peng Fan <peng.fan at nxp.com>; Fabio Estevam
> <festevam at gmail.com>
> Subject: [PATCH v2] mx6ul_14x14_evk: Simplify the PMIC register writes
> 
> There is no need to store the values written to the PMIC inside the 'reg'
> variable. Make it simpler by writing the values directly.
> 
> Signed-off-by: Fabio Estevam <festevam at gmail.com>
> ---
> Changes since v1:
> - Remove 1/2 notation, since this is a standalome patch
> - Add Peng Fan on Cc
> 
>  board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
> b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
> index 595ad76bbe..636c008993 100644
> --- a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
> +++ b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
> @@ -86,16 +86,13 @@ int power_init_board(void)
>  	pmic_reg_write(dev, PFUZE3000_LDOGCTL, reg);
> 
>  	/* SW1B step ramp up time from 2us to 4us/25mV */
> -	reg = 0x40;
> -	pmic_reg_write(dev, PFUZE3000_SW1BCONF, reg);
> +	pmic_reg_write(dev, PFUZE3000_SW1BCONF, 0x40);
> 
>  	/* SW1B mode to APS/PFM */
> -	reg = 0xc;
> -	pmic_reg_write(dev, PFUZE3000_SW1BMODE, reg);
> +	pmic_reg_write(dev, PFUZE3000_SW1BMODE, 0xc);
> 
>  	/* SW1B standby voltage set to 0.975V */
> -	reg = 0xb;
> -	pmic_reg_write(dev, PFUZE3000_SW1BSTBY, reg);
> +	pmic_reg_write(dev, PFUZE3000_SW1BSTBY, 0xb);

Reviewed-by: Peng Fan <peng.fan at nxp.com>

> 
>  	return 0;
>  }
> --
> 2.17.1



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