linux-kernel - Re: [PATCH v3] dt-bindings: firmware: imx: sync with SCFW kit v1.13.0

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Message-ID: <20220919180631.x2telgn6d7woggmz@fsr-ub1664-116>
Date:   Mon, 19 Sep 2022 21:06:31 +0300
From:   Viorel Suman <viorel.suman@....nxp.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Viorel Suman <viorel.suman@....com>,
        Shenwei Wang <shenwei.wang@....com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] dt-bindings: firmware: imx: sync with SCFW kit v1.13.0

On 22-09-19 18:10:51, Krzysztof Kozlowski wrote:
> On 19/09/2022 15:22, Viorel Suman (OSS) wrote:
> > From: Viorel Suman <viorel.suman@....com>
> > 
> > Sync defines with the latest available SCFW kit version 1.13.0,
> > may be found at the address below:
> > 
> > https://www.nxp.com/webapp/Download?colCode=L5.15.32_2.0.0_SCFWKIT-1.13.0&appType=license
> > 
> > Signed-off-by: Viorel Suman <viorel.suman@....com>
> > ---
> >  include/dt-bindings/firmware/imx/rsrc.h | 294 ++++++++++++++++--------
> >  1 file changed, 198 insertions(+), 96 deletions(-)
> > 
> > Changes since v1: https://lore.kernel.org/all/20220915181805.424670-1-viorel.suman@oss.nxp.com/
> > 	Two patches squashed into one in order to keep changes bissectable
> > 	and compilable as suggested by Alexander Stein.
> > 
> > Changes since v2: https://lore.kernel.org/all/20220919113715.243910-1-viorel.suman@oss.nxp.com/
> > 	Added two more defines in backward compatibility section in order to
> > 	to avoid breaking ABI, so there is no need to change the driver
> > 	anymore.
> > 
> > diff --git a/include/dt-bindings/firmware/imx/rsrc.h b/include/dt-bindings/firmware/imx/rsrc.h
> > index 1675de05ad33..ed33869f184e 100644
> > --- a/include/dt-bindings/firmware/imx/rsrc.h
> > +++ b/include/dt-bindings/firmware/imx/rsrc.h
> > @@ -13,30 +13,30 @@
> >   * never be changed or removed (only added to at the end of the list).
> >   */
> >  
> > -#define IMX_SC_R_A53			0
> > -#define IMX_SC_R_A53_0			1
> > -#define IMX_SC_R_A53_1			2
> > -#define IMX_SC_R_A53_2			3
> > -#define IMX_SC_R_A53_3			4
> > -#define IMX_SC_R_A72			5
> > -#define IMX_SC_R_A72_0			6
> > -#define IMX_SC_R_A72_1			7
> > -#define IMX_SC_R_A72_2			8
> > -#define IMX_SC_R_A72_3			9
> > +#define IMX_SC_R_AP_0			0
> > +#define IMX_SC_R_AP_0_0			1
> > +#define IMX_SC_R_AP_0_1			2
> > +#define IMX_SC_R_AP_0_2			3
> > +#define IMX_SC_R_AP_0_3			4
> > +#define IMX_SC_R_AP_1			5
> > +#define IMX_SC_R_AP_1_0			6
> > +#define IMX_SC_R_AP_1_1			7
> > +#define IMX_SC_R_AP_1_2			8
> > +#define IMX_SC_R_AP_1_3			9
> >  #define IMX_SC_R_CCI			10
> >  #define IMX_SC_R_DB			11
> >  #define IMX_SC_R_DRC_0			12
> >  #define IMX_SC_R_DRC_1			13
> >  #define IMX_SC_R_GIC_SMMU		14
> > -#define IMX_SC_R_IRQSTR_M4_0		15
> > -#define IMX_SC_R_IRQSTR_M4_1		16
> > -#define IMX_SC_R_SMMU			17
> > -#define IMX_SC_R_GIC			18
> > +#define IMX_SC_R_IRQSTR_MCU_0		15
> > +#define IMX_SC_R_IRQSTR_MCU_1		16
> > +#define IMX_SC_R_SMMU_0			17
> > +#define IMX_SC_R_GIC_0			18
> >  #define IMX_SC_R_DC_0_BLIT0		19
> >  #define IMX_SC_R_DC_0_BLIT1		20
> >  #define IMX_SC_R_DC_0_BLIT2		21
> >  #define IMX_SC_R_DC_0_BLIT_OUT		22
> > -#define IMX_SC_R_PERF			23
> > +#define IMX_SC_R_PERF_0			23
> >  #define IMX_SC_R_USB_1_PHY		24
> >  #define IMX_SC_R_DC_0_WARP		25
> >  #define IMX_SC_R_V2X_MU_0		26
> > @@ -56,11 +56,14 @@
> >  #define IMX_SC_R_V2X_MU_3		40
> >  #define IMX_SC_R_V2X_MU_4		41
> >  #define IMX_SC_R_DC_1_WARP		42
> > +#define IMX_SC_R_STM			43
> >  #define IMX_SC_R_SECVIO			44
> >  #define IMX_SC_R_DC_1_VIDEO0		45
> >  #define IMX_SC_R_DC_1_VIDEO1		46
> >  #define IMX_SC_R_DC_1_FRAC0		47
> > +#define IMX_SC_R_V2X			48
> >  #define IMX_SC_R_DC_1			49
> > +#define IMX_SC_R_UNUSED14		50
> >  #define IMX_SC_R_DC_1_PLL_0		51
> >  #define IMX_SC_R_DC_1_PLL_1		52
> >  #define IMX_SC_R_SPI_0			53
> > @@ -151,10 +154,10 @@
> >  #define IMX_SC_R_DMA_1_CH29		137
> >  #define IMX_SC_R_DMA_1_CH30		138
> >  #define IMX_SC_R_DMA_1_CH31		139
> > -#define IMX_SC_R_UNUSED1		140
> 
> This one disappears...

Hi Krzysztof,

Right, it was renamed in the subsequent SCFW kit
versions to IMX_SC_R_V2X_PID0, thus - this patch
rename it in include/dt-bindings/firmware/imx/rsrc.h
file in order to have this file and SCFW kit defines
synchronized.

IMX_SC_R_UNUSED1 is not referenced somehow in kernel,
thus - no compilation issues if renamed to IMX_SC_R_V2X_PID0,
IMHO it does not make sense to me to add the related
backward compatibility define like below:

#define IMX_SC_R_UNUSED1 IMX_SC_R_V2X_PID0

Regards,
Viorel 
 

> 
> > -#define IMX_SC_R_UNUSED2		141
> > -#define IMX_SC_R_UNUSED3		142
> > -#define IMX_SC_R_UNUSED4		143
> 
> Best regards,
> Krzysztof