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Fri, 06 Nov 2026 12:13:53 +0100 (CET) From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Subject: [PATCH 3/4] pwm: atmel: look up the clock without a name Date: Fri, 6 Nov 2026 12:13:49 +0100 Message-ID: <20261106111352.3535034-3-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261106111352.3535034-1-a.fatoum@pengutronix.de> References: <20261106111352.3535034-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261106_031358_065657_A9F0135A X-CRM114-Status: GOOD ( 11.76 ) X-Spam-Score: -2.1 (--) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: From: Ahmad Fatoum The SAMA5D2, SAMA5D3 and SAMA5D4 device trees don't name the PWM clock, so probe fails with -ENOENT on these SoCs. Linux requests the clock without a name, so let's do the same. at91sam9263.dtsi has o [...] Content analysis details: (-2.1 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 URIBL_BLOCKED ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [URI: pengutronix.de] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.0 DMARC_MISSING Missing DMARC policy X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-Rspamd-Server: mx1 X-Rspamd-Queue-Id: 34103201899 X-Spamd-Result: default: False [-59.11 / 15.00]; RECEIVED_AUTHENTICATED_BY_MX1(-50.00)[]; BAYES_HAM(-3.00)[99.99%]; ARC_ALLOW_TRUSTED(-2.00)[pengutronix.de:s=20260414:i=1]; DWL_DNSWL_MED(-2.00)[infradead.org:dkim]; MID_CONTAINS_FROM(1.00)[]; KNOWN_LIST_ID(-1.00)[barebox.lists.infradead.org]; ARC_ALLOW(-1.00)[pengutronix.de:s=20260414:i=1]; R_MISSING_CHARSET(0.50)[]; RCVD_DKIM_ARC_DNSWL_MED(-0.50)[]; RCVD_IN_DNSWL_MED(-0.40)[2a0a:edc0:0:1101:1d::54:received,2607:7c80:54:3::133:from]; R_DKIM_ALLOW(-0.20)[lists.infradead.org:s=bombadil.20210309,pengutronix.de:s=20260414]; R_SPF_ALLOW(-0.20)[+mx:c]; MAILLIST(-0.20)[mailman]; MIME_GOOD(-0.10)[text/plain]; HAS_LIST_UNSUB(-0.01)[]; ARC_SIGNED(0.00)[pengutronix.de:s=20260414:i=2]; RCPT_COUNT_TWO(0.00)[2]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; DMARC_NA(0.00)[pengutronix.de]; RECEIVED_HELO_LOCALHOST(0.00)[]; RCVD_COUNT_THREE(0.00)[4]; DKIM_TRACE(0.00)[lists.infradead.org:+,pengutronix.de:+]; TAGGED_FROM(0.00)[lore=pengutronix.de]; FROM_NEQ_ENVFROM(0.00)[a.fatoum@pengutronix.de,barebox-bounces@lists.infradead.org]; FROM_HAS_DN(0.00)[]; RCVD_TLS_LAST(0.00)[]; NEURAL_HAM(-0.00)[-1.000]; ASN(0.00)[asn:7247, ipnet:2607:7c80:54::/48, country:US]; RCVD_VIA_SMTP_AUTH(0.00)[]; FORGED_RECIPIENTS_MAILLIST(0.00)[]; FORGED_SENDER_MAILLIST(0.00)[] X-Rspamd-Action: no action X-Stat-Signature: xwdiy49fgw1uu7nuzm87gibe4cwrp87o From: Ahmad Fatoum The SAMA5D2, SAMA5D3 and SAMA5D4 device trees don't name the PWM clock, so probe fails with -ENOENT on these SoCs. Linux requests the clock without a name, so let's do the same. at91sam9263.dtsi has only the one clock, so it keeps working. Fixes: 3b4a22e803bb ("pwm: add pwm-atmel from Linux kernel 4.14") Signed-off-by: Ahmad Fatoum --- drivers/pwm/pwm-atmel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pwm/pwm-atmel.c b/drivers/pwm/pwm-atmel.c index a847d4d434e3..35299cbc563a 100644 --- a/drivers/pwm/pwm-atmel.c +++ b/drivers/pwm/pwm-atmel.c @@ -432,7 +432,7 @@ static int atmel_pwm_probe(struct device *dev) atmel_pwm = xzalloc(sizeof(*atmel_pwm)); atmel_pwm->data = data; atmel_pwm->dev = dev; - atmel_pwm->clk = clk_get(dev, "pwm_clk"); + atmel_pwm->clk = clk_get(dev, NULL); if (IS_ERR(atmel_pwm->clk)) return PTR_ERR(atmel_pwm->clk); -- 2.47.3