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[78.94.0.51]) by smtp.gmail.com with ESMTPSA id x17-20020a5d6511000000b0031fd849e797sm3917553wru.105.2023.09.22.02.03.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Sep 2023 02:03:36 -0700 (PDT) From: Naresh Solanki To: broonie@kernel.org, zev@bewilderbeest.net, Liam Girdwood Cc: Naresh Solanki , linux-kernel@vger.kernel.org Subject: [RESEND PATCH] regulator: userspace-consumer: Retrieve supplies from DT Date: Fri, 22 Sep 2023 11:03:29 +0200 Message-ID: <20230922090330.1570350-1-naresh.solanki@9elements.com> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Naresh Solanki Instead of hardcoding a single supply, retrieve supplies from DT. Signed-off-by: Naresh Solanki --- drivers/regulator/userspace-consumer.c | 43 ++++++++++++++++++++++++-- 1 file changed, 40 insertions(+), 3 deletions(-) diff --git a/drivers/regulator/userspace-consumer.c b/drivers/regulator/use= rspace-consumer.c index 97f075ed68c9..a3d3e1e6ca74 100644 --- a/drivers/regulator/userspace-consumer.c +++ b/drivers/regulator/userspace-consumer.c @@ -115,11 +115,32 @@ static const struct attribute_group attr_group =3D { .is_visible =3D attr_visible, }; =20 +#define SUPPLY_SUFFIX "-supply" +#define SUPPLY_SUFFIX_LEN 7 + +static int get_num_supplies(struct platform_device *pdev) +{ + struct property *prop; + int num_supplies =3D 0; + + for_each_property_of_node(pdev->dev.of_node, prop) { + const char *prop_name =3D prop->name; + int len =3D strlen(prop_name); + + if (len > SUPPLY_SUFFIX_LEN && + strcmp(prop_name + len - SUPPLY_SUFFIX_LEN, SUPPLY_SUFFIX) =3D=3D 0)= { + num_supplies++; + } + } + return num_supplies; +} + static int regulator_userspace_consumer_probe(struct platform_device *pdev) { struct regulator_userspace_consumer_data tmpdata; struct regulator_userspace_consumer_data *pdata; struct userspace_consumer_data *drvdata; + struct property *prop; int ret; =20 pdata =3D dev_get_platdata(&pdev->dev); @@ -131,11 +152,27 @@ static int regulator_userspace_consumer_probe(struct = platform_device *pdev) memset(pdata, 0, sizeof(*pdata)); =20 pdata->no_autoswitch =3D true; - pdata->num_supplies =3D 1; - pdata->supplies =3D devm_kzalloc(&pdev->dev, sizeof(*pdata->supplies), G= FP_KERNEL); + pdata->num_supplies =3D get_num_supplies(pdev); + + pdata->supplies =3D devm_kzalloc(&pdev->dev, pdata->num_supplies * + sizeof(*pdata->supplies), GFP_KERNEL); if (!pdata->supplies) return -ENOMEM; - pdata->supplies[0].supply =3D "vout"; + + for_each_property_of_node(pdev->dev.of_node, prop) { + const char *prop_name =3D prop->name; + int len =3D strlen(prop_name); + + if (len > SUPPLY_SUFFIX_LEN && + strcmp(prop_name + len - SUPPLY_SUFFIX_LEN, SUPPLY_SUFFIX) =3D=3D 0= ) { + char *supply_name =3D devm_kzalloc(&pdev->dev, + len - SUPPLY_SUFFIX_LEN + 1, + GFP_KERNEL); + strscpy(supply_name, prop_name, len - SUPPLY_SUFFIX_LEN); + supply_name[len - SUPPLY_SUFFIX_LEN] =3D '\0'; + pdata->supplies[0].supply =3D supply_name; + } + } } =20 if (pdata->num_supplies < 1) { base-commit: 451e85e29c9d6f20639d4cfcff4b9dea280178cc --=20 2.41.0