| Message ID | 20171211081144.GA140567@aremote07.aus.cypress.com |
|---|---|
| State | Rejected, archived |
| Headers | show |
| Series | dt-bindings: net: wireless: Add sg parameters dts parsing | expand |
On 12/11/2017 9:11 AM, Chi-Hsien Lin wrote: > broken_sg_support, sd_head_align, and sd_sgentry_align are used in > brcmfmac code but not configurable in dts file. Add the parsing logic. > Now they can be configured like below in dts: > brcm,broken_sg_support; > brcm,sd_head_align = <4>; > brcm,sd_sgentry_align = <4>; > > Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> > --- > .../devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt > index 86602f2..4d42f0d 100644 > --- a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt > +++ b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt > @@ -17,6 +17,11 @@ Optional properties: > When not specified the device will use in-band SDIO interrupts. > - interrupt-names : name of the out-of-band interrupt, which must be set > to "host-wake". > + - broken_sg_support : flag for broken sg list support of SDIO host controller. > + Set this to true if the SDIO host controller has higher align > + requirement than 32 bytes for each scatterlist item. In DT context, this does not characterize the device but as described it is about the SDIO host controller. I think the same applies to the properties below, but not entirely sure about that. > + - sg_head_align : alignment requirement for start of data buffer. > + - sg_sgentry_align : length alignment requirement for each sg entry. Regards, Arend -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Dec 11, 2017 at 10:55:18AM +0100, Arend van Spriel wrote: > On 12/11/2017 9:11 AM, Chi-Hsien Lin wrote: > > broken_sg_support, sd_head_align, and sd_sgentry_align are used in > > brcmfmac code but not configurable in dts file. Add the parsing logic. > > Now they can be configured like below in dts: > > brcm,broken_sg_support; > > brcm,sd_head_align = <4>; > > brcm,sd_sgentry_align = <4>; > > > > Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> > > --- > > .../devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt | 8 ++++++++ > > 1 file changed, 8 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt > > index 86602f2..4d42f0d 100644 > > --- a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt > > +++ b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt > > @@ -17,6 +17,11 @@ Optional properties: > > When not specified the device will use in-band SDIO interrupts. > > - interrupt-names : name of the out-of-band interrupt, which must be set > > to "host-wake". > > + - broken_sg_support : flag for broken sg list support of SDIO host controller. > > + Set this to true if the SDIO host controller has higher align > > + requirement than 32 bytes for each scatterlist item. > > In DT context, this does not characterize the device but as described it is > about the SDIO host controller. I think the same applies to the properties > below, but not entirely sure about that. Yes. However, all of this should be implied by the host controller's compatible property. For future reference, don't use '_' in property names either. Rob -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt index 86602f2..4d42f0d 100644 --- a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt +++ b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt @@ -17,6 +17,11 @@ Optional properties: When not specified the device will use in-band SDIO interrupts. - interrupt-names : name of the out-of-band interrupt, which must be set to "host-wake". + - broken_sg_support : flag for broken sg list support of SDIO host controller. + Set this to true if the SDIO host controller has higher align + requirement than 32 bytes for each scatterlist item. + - sg_head_align : alignment requirement for start of data buffer. + - sg_sgentry_align : length alignment requirement for each sg entry. Example: @@ -36,5 +41,8 @@ mmc3: mmc@1c12000 { interrupt-parent = <&pio>; interrupts = <10 8>; /* PH10 / EINT10 */ interrupt-names = "host-wake"; + brcm,broken_sg_support; + brcm,sd_head_align = <4>; + brcm,sd_sgentry_align = <4>; }; };
broken_sg_support, sd_head_align, and sd_sgentry_align are used in brcmfmac code but not configurable in dts file. Add the parsing logic. Now they can be configured like below in dts: brcm,broken_sg_support; brcm,sd_head_align = <4>; brcm,sd_sgentry_align = <4>; Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> --- .../devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt | 8 ++++++++ 1 file changed, 8 insertions(+)