From: Chanho Park <chanho61.park@samsung.com> To: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>, Andi Shyti <andi@etezian.org>, Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org> Cc: Alim Akhtar <alim.akhtar@samsung.com>, devicetree@vger.kernel.org, linux-spi@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Chanho Park <chanho61.park@samsung.com> Subject: [PATCH v3 0/4] spi support for Exynos Auto v9 SoC Date: Wed, 29 Jun 2022 19:23:00 +0900 [thread overview] Message-ID: <20220629102304.65712-1-chanho61.park@samsung.com> (raw) In-Reply-To: CGME20220629102527epcas2p4ab04f91877e5f744c4a4e37827d19ce8@epcas2p4.samsung.com Add to support Exynos Auto v9 SoC's spi. By supporting USI(Universal Serial Interface) mode, the SoC can support up to 12 spi ports. Thus, we need to increase MAX_SPI_PORTS from 6 to 12. The spi of the SoC can support loopback mode unlike previous exynos SoCs. To separate the feature, we need to add .has_loopback to the s3c64xx_spi_port_config. Furthermore, it uses 4 as the default internal clock divider. We also need to clk_div field of the structure and assign "2" as the default value to the existing SoC's port config. Device tree definitions of exynosautov9-spi will be added in separated patchset to include usi(i2c/uart/spi) nodes all together. Changes from v2: - Rebase the patches on top of the latest next/master (next-20220629) - Add Andy's R-B tags for #1, #3 and #4 patches - Add Krzysztof's R-B tag for #4 patch - Drop div local variable assignment as suggested by Krzysztof - Change the data type of 'div' local variables to be consistent with clk_div (Pointed by Andy) Changes from v1: - Patch #1 "increase MAX_SPI_PORTS to 12" has been squashed to the patch #4 - Add Krzysztof's RB tags for #1 and #3 patches - Assign clk_div value to 2 for existing SoC's port configs - Make const of exynosautov9_spi_port_config Chanho Park (4): spi: s3c64xx: support loopback mode spi: s3c64xx: support custom value of internal clock divider dt-bindings: samsung,spi: define exynosautov9 compatible spi: s3c64xx: add spi port configuration for Exynos Auto v9 SoC .../devicetree/bindings/spi/samsung,spi.yaml | 5 +- drivers/spi/spi-s3c64xx.c | 54 +++++++++++++++---- 2 files changed, 49 insertions(+), 10 deletions(-) -- 2.36.1
WARNING: multiple messages have this Message-ID (diff)
From: Chanho Park <chanho61.park@samsung.com> To: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>, Andi Shyti <andi@etezian.org>, Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org> Cc: Alim Akhtar <alim.akhtar@samsung.com>, devicetree@vger.kernel.org, linux-spi@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Chanho Park <chanho61.park@samsung.com> Subject: [PATCH v3 0/4] spi support for Exynos Auto v9 SoC Date: Wed, 29 Jun 2022 19:23:00 +0900 [thread overview] Message-ID: <20220629102304.65712-1-chanho61.park@samsung.com> (raw) In-Reply-To: CGME20220629102527epcas2p4ab04f91877e5f744c4a4e37827d19ce8@epcas2p4.samsung.com Add to support Exynos Auto v9 SoC's spi. By supporting USI(Universal Serial Interface) mode, the SoC can support up to 12 spi ports. Thus, we need to increase MAX_SPI_PORTS from 6 to 12. The spi of the SoC can support loopback mode unlike previous exynos SoCs. To separate the feature, we need to add .has_loopback to the s3c64xx_spi_port_config. Furthermore, it uses 4 as the default internal clock divider. We also need to clk_div field of the structure and assign "2" as the default value to the existing SoC's port config. Device tree definitions of exynosautov9-spi will be added in separated patchset to include usi(i2c/uart/spi) nodes all together. Changes from v2: - Rebase the patches on top of the latest next/master (next-20220629) - Add Andy's R-B tags for #1, #3 and #4 patches - Add Krzysztof's R-B tag for #4 patch - Drop div local variable assignment as suggested by Krzysztof - Change the data type of 'div' local variables to be consistent with clk_div (Pointed by Andy) Changes from v1: - Patch #1 "increase MAX_SPI_PORTS to 12" has been squashed to the patch #4 - Add Krzysztof's RB tags for #1 and #3 patches - Assign clk_div value to 2 for existing SoC's port configs - Make const of exynosautov9_spi_port_config Chanho Park (4): spi: s3c64xx: support loopback mode spi: s3c64xx: support custom value of internal clock divider dt-bindings: samsung,spi: define exynosautov9 compatible spi: s3c64xx: add spi port configuration for Exynos Auto v9 SoC .../devicetree/bindings/spi/samsung,spi.yaml | 5 +- drivers/spi/spi-s3c64xx.c | 54 +++++++++++++++---- 2 files changed, 49 insertions(+), 10 deletions(-) -- 2.36.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next parent reply other threads:[~2022-06-29 10:25 UTC|newest] Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <CGME20220629102527epcas2p4ab04f91877e5f744c4a4e37827d19ce8@epcas2p4.samsung.com> 2022-06-29 10:23 ` Chanho Park [this message] 2022-06-29 10:23 ` [PATCH v3 0/4] spi support for Exynos Auto v9 SoC Chanho Park [not found] ` <CGME20220629102527epcas2p21c9ba830afdf5ec5a8afde4707206186@epcas2p2.samsung.com> 2022-06-29 10:23 ` [PATCH v3 1/4] spi: s3c64xx: support loopback mode Chanho Park 2022-06-29 10:23 ` Chanho Park [not found] ` <CGME20220629102527epcas2p42e99f44d529d215623bd0e12a082d1dd@epcas2p4.samsung.com> 2022-06-29 10:23 ` [PATCH v3 2/4] spi: s3c64xx: support custom value of internal clock divider Chanho Park 2022-06-29 10:23 ` Chanho Park 2022-06-29 10:52 ` Andi Shyti 2022-06-29 10:52 ` Andi Shyti 2022-06-29 11:13 ` Krzysztof Kozlowski 2022-06-29 11:13 ` Krzysztof Kozlowski 2022-06-29 11:36 ` Mark Brown 2022-06-29 11:36 ` Mark Brown 2022-06-30 9:07 ` Linus Walleij 2022-06-30 9:07 ` Linus Walleij 2022-06-30 9:16 ` Linus Walleij 2022-06-30 9:16 ` Linus Walleij 2022-07-01 7:08 ` Chanho Park 2022-07-01 7:08 ` Chanho Park [not found] ` <CGME20220629102527epcas2p17d7347cf06341193ec91b5f892e69217@epcas2p1.samsung.com> 2022-06-29 10:23 ` [PATCH v3 3/4] dt-bindings: samsung,spi: define exynosautov9 compatible Chanho Park 2022-06-29 10:23 ` Chanho Park [not found] ` <CGME20220629102527epcas2p19e967e3647084cbfad1bff0b9390b4ad@epcas2p1.samsung.com> 2022-06-29 10:23 ` [PATCH v3 4/4] spi: s3c64xx: add spi port configuration for Exynos Auto v9 SoC Chanho Park 2022-06-29 10:23 ` Chanho Park 2022-06-29 14:44 ` [PATCH v3 0/4] spi support " Mark Brown 2022-06-29 14:44 ` Mark Brown
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20220629102304.65712-1-chanho61.park@samsung.com \ --to=chanho61.park@samsung.com \ --cc=alim.akhtar@samsung.com \ --cc=andi@etezian.org \ --cc=broonie@kernel.org \ --cc=devicetree@vger.kernel.org \ --cc=krzysztof.kozlowski+dt@linaro.org \ --cc=krzysztof.kozlowski@linaro.org \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-samsung-soc@vger.kernel.org \ --cc=linux-spi@vger.kernel.org \ --cc=robh+dt@kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.