From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 06 Sep 2023 15:27:23 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qdsZ2-00619W-AZ for lore@lore.pengutronix.de; Wed, 06 Sep 2023 15:27:23 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qdsZ0-0003tI-6d for lore@pengutronix.de; Wed, 06 Sep 2023 15:27:22 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=LYwa4g656Gs2q5eeZb6qoTn9j0W0MnjTPJFiBwWGyWY=; b=1RaoWIlN+sE/ds aDGKnP9sI0gA9byBSEERK4EmtqppbfNiZ0aC8C+9FijiEPBQCXwm9ycxaC0HQtAH5eKgAZFK4NHo7 Gg/8MMMfjLKutM2AzH2ti8WEdZC2cAxQYwYiVdmS3mTNeBwVvtdv3aK1SWV4MGNHiUcfsjBoSvCLo tnz99s5QczTZT19ZnZ4rcHA8lzvhGQnr0AYmCAXJ0Ebyrkvj69TiVJeFlhjGrDSTTXcashhPCHHuB jxXg6c5fSrpQvTJRMDnM63yiEfFnGuYR+uLT5mAPD+JT18WriBKirPyhTtvYGL+kyuoDBer0SjSyl 0bspZy/oE+BroxWG4Zzw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qdsYE-00A3Ks-1W; Wed, 06 Sep 2023 13:26:34 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qdsYB-00A3K6-2H for barebox@lists.infradead.org; Wed, 06 Sep 2023 13:26:33 +0000 Received: from dude04.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::ac]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1qdsY9-0003eP-ST; Wed, 06 Sep 2023 15:26:29 +0200 From: Bastian Krause To: barebox@lists.infradead.org Date: Wed, 6 Sep 2023 15:26:23 +0200 Message-Id: <20230906132623.1608529-1-bst@pengutronix.de> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230906_062631_743179_2EE1969C X-CRM114-Status: GOOD ( 13.32 ) 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: , Cc: afa@pengutronix.de, Bastian Krause Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.3 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH] commands: pwm: add option to list registered PWMs X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) It's useful to be able to list all registered PWMs, especially considering these might be aliased. So add such an option to the pwm command. Signed-off-by: Bastian Krause --- commands/pwm.c | 8 ++++++-- drivers/pwm/core.c | 9 +++++++++ include/pwm.h | 2 ++ 3 files changed, 17 insertions(+), 2 deletions(-) diff --git a/commands/pwm.c b/commands/pwm.c index 68d7988886e..5d41fa8ff42 100644 --- a/commands/pwm.c +++ b/commands/pwm.c @@ -34,8 +34,11 @@ static int do_pwm_cmd(int argc, char *argv[]) bool verbose = false; int opt; - while ((opt = getopt(argc, argv, "d:D:P:f:w:F:isv")) > 0) { + while ((opt = getopt(argc, argv, "ld:D:P:f:w:F:isv")) > 0) { switch (opt) { + case 'l': + pwm_print(); + return 0; case 'd': devname = optarg; break; @@ -189,6 +192,7 @@ BAREBOX_CMD_HELP_TEXT(" (although note this will not by itself stop the pwm run BAREBOX_CMD_HELP_TEXT(" Stopping the pwm device does not necessarily set the output to inactive,") BAREBOX_CMD_HELP_TEXT(" but stop is handled last, so can be done in addition to other changes.") BAREBOX_CMD_HELP_TEXT("Options:") +BAREBOX_CMD_HELP_OPT("-l\t", "list registered PWMs") BAREBOX_CMD_HELP_OPT("-d ", "device name (eg 'pwm0')") BAREBOX_CMD_HELP_OPT("-D ", "duty cycle (ns)") BAREBOX_CMD_HELP_OPT("-P ", "period (ns)") @@ -202,7 +206,7 @@ BAREBOX_CMD_HELP_END BAREBOX_CMD_START(pwm) .cmd = do_pwm_cmd, BAREBOX_CMD_DESC("pwm") - BAREBOX_CMD_OPTS("[-dDPfwisv]") + BAREBOX_CMD_OPTS("[-ldDPfwisv]") BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP) BAREBOX_CMD_HELP(cmd_pwm_help) BAREBOX_CMD_END diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 2237dad4537..a3f27708e6e 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -44,6 +44,15 @@ struct pwm_device { static LIST_HEAD(pwm_list); +void pwm_print(void) +{ + struct pwm_device *pwm; + + list_for_each_entry(pwm, &pwm_list, node) + printf("%s\n", pwm->chip->devname); +} +EXPORT_SYMBOL(pwm_print); + static struct pwm_device *_find_pwm(const char *devname) { struct pwm_device *pwm; diff --git a/include/pwm.h b/include/pwm.h index 02af7d0a5f3..4d403fe1746 100644 --- a/include/pwm.h +++ b/include/pwm.h @@ -24,6 +24,8 @@ struct pwm_state { unsigned int p_enable; }; +void pwm_print(void); + /* * pwm_request - request a PWM device */ -- 2.39.2