From patchwork Mon Mar 3 11:38:06 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13998661 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 45B0A1FF7CC; Mon, 3 Mar 2025 11:38:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741001902; cv=none; b=lqEq9r4IuY4GQl/hACsVnFzJPz15/gMc9cSQY/c1WLJMoz8+4ZI4BlxVaE++CSfV3tpZ5Bx8r4xyZwI/piWB5EpyWTlvvrKwVdoq6joy38W4LQROFpVhFWOkcvuPjhh17vKsNbHYk48s6nhpTpVPHgczpY1qFQXgbnafSz5O4So= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741001902; c=relaxed/simple; bh=QmTfQJ4Z505mDgbQ/uz5xxw6QOKRz4rmJR1fKJ6jkxo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=cTAS8V2vlJcanxrk7UcMkv89/M4WLCwm8DZZ3gEtHuAK8eiglhRiel/zGcr+LWFUZrDA47sOVFkAt7Yydo2+hg87veZnFFdU6qgp5PPGik9JegB2aUeNnKWlKc7fc6RLBk49NlFzIKz/yLx0m65y21chqVQ7/RsMXwO0DWoc1tc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com; spf=pass smtp.mailfrom=bp.renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bp.renesas.com X-CSE-ConnectionGUID: 2jS7dRW4R8WZKIE4E5E8xQ== X-CSE-MsgGUID: UnhqAgb7SQyrYZTt03dcGw== Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 03 Mar 2025 20:38:19 +0900 Received: from localhost.localdomain (unknown [10.226.92.114]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 4BBF5426ADE3; Mon, 3 Mar 2025 20:38:15 +0900 (JST) From: Biju Das To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Biju Das , Geert Uytterhoeven , Magnus Damm , Wolfram Sang , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar Mahadev Lad , Biju Das Subject: [PATCH v5 0/2] Add RZ/G3E SDHI support Date: Mon, 3 Mar 2025 11:38:06 +0000 Message-ID: <20250303113812.88014-1-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The SD/MMC block on the RZ/G3E ("R9A09G047") SoC is similar to that of the RZ/V2H, but the SD0 channel has only dedicated pins, so we must use SD_STATUS register to control voltage and power enable (internal regulator). For SD1 and SD2 channel we can either use gpio regulator or internal regulator (using SD_STATUS register) for voltage switching. For SD0, fixed voltage(eMMC) uses fixed regulator and non-fixed voltage (SD) uses internal regulator. v4->v5: * Collected tag from Wolfram Sang. * Dropped redundant struct renesas_sdhi_vqmmc_regulator initialization. * Added one space before '=' in the struct initializer. v3->v4: * Dropped dts patches as it is deferred for queuing. * Arranged variables of same types close to each other in probe() and dropped patch#2. * Added sd_ctrl_read32(). * Replaced sd_ctrl_read32_rep()->sd_ctrl_read32(). v2->v3: * Collected tags * Renamed internal regulator labels vqmmc_sdhi{0..2}->sdhi{0..2}_vqmmc. * Updated regulator phandles on SoM/Board dts. * Dropped renaming the gpio regulator label vqmmc_sdhi1->vqmmc_sdhi1_gpio. * Renamed node sd0emmc->sd0-emmc * Renamed sd0-emmc-{ctrl,data,rst}->sd0-{ctrl,data,rst} * Moved header file gpio.h from patch#6 to patch#8. * Dropped overriding internal regulator name. * Dropped #if guard in pinctrl node for SDHI0 * Renamed the label/node sdhi0_pins: sd0->sdhi0_usd_pins: sd0-usd. v1->v2: * Collected tags. * Documented internal regulator as optional property for both RZ/G3E and RZ/V2H SoCs. * Updated commit description for regulator used in SD0 fixed and non-fixed voltage case in patch#3. * As the node enabling of internal regulator is controlled through status, added a check for device availability. * Status of internal regulator is disabled in the SoC .dtsi. Override the status in the board DTS when needed. * Added support for enabling SDHI internal regulator in RZ/V2H * Added missing header file gpio.h * Used fixed regulator for eMMC on SD0 and dropped sd0-iovs pins for eMMC. * Sorted pinctrl nodes for sd2 * Enabled internal regulator for SD2. * Added support for enabling SD on SDHI0 * Replaced the regulator usd_vdd_3p3v->reg_3p3v. * Renamed the gpio-hog node sd1-pwr-en->sd1-pwr-en-hog. * Sorted sd1 pin ctrl nodes. Biju Das (2): dt-bindings: mmc: renesas,sdhi: Document RZ/G3E support mmc: renesas_sdhi: Add support for RZ/G3E SoC .../devicetree/bindings/mmc/renesas,sdhi.yaml | 16 +++ drivers/mmc/host/renesas_sdhi.h | 1 + drivers/mmc/host/renesas_sdhi_core.c | 130 ++++++++++++++++++ drivers/mmc/host/tmio_mmc.h | 10 ++ 4 files changed, 157 insertions(+)