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(unknown [109.120.22.104]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20260228062019epsmtip26bd7c90b7d25ad614119120827d29c27~YVLv2PreU1943819438epsmtip2f; Sat, 28 Feb 2026 06:20:19 +0000 (GMT) From: "ping.gao" To: ulf.hansson@linaro.org, jh80.chung@samsung.com Cc: shawn.lin@rock-chips.com, krzk@kernel.org, krzk+dt@kernel.org, robh@kernel.org, conor+dt@kernel.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kwangwon.min@samsung.com, hy50.seo@samsung.com, Ping Gao Subject: [PATCH v4 0/3] mmc: dw_mmc: Support optional BIU clock Date: Sat, 28 Feb 2026 14:24:54 +0800 Message-ID: <20260228062457.3210099-1-ping.gao@samsung.com> X-Mailer: git-send-email 2.49.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CMS-MailID: 20260228062020epcas5p1e498c4fc67f590f4243645288c492f01 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P X-CMS-RootMailID: 20260228062020epcas5p1e498c4fc67f590f4243645288c492f01 References: From: Ping Gao This series relaxes the BIU clock constraint in the dt-bindings and updates the dw_mmc driver to treat it as optional. This is necessary for SoC designs where BIU and CIU share a single clock source. The entire series is resent as v4 to fix previous threading issues and address feedback on the YAML schema and commit formatting. v4: - Resend as a new standalone thread to fix the threading mess. - dt-bindings: sync clock-names with clocks using oneOf. - dt-bindings: remove redundant description text. - Update commit messages with hardware-level justification. - Fix Signed-off-by name format and missing blank lines. Ping Gao (3): dt-bindings: mmc: synopsys-dw-mshc: relax clocks constraint mmc: dw_mmc-k3: before set biu_clk rate, check biu_clk available or not mmc: dw_mmc: Using devm_clk_get_optional() for biu_clk .../devicetree/bindings/mmc/synopsys-dw-mshc.yaml | 13 +++++++++---- drivers/mmc/host/dw_mmc-k3.c | 5 +++++ drivers/mmc/host/dw_mmc.c | 2 +- 3 files changed, 15 insertions(+), 5 deletions(-) -- 2.50.1