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[2001:14ba:16e2:8300::4]) by smtp.gmail.com with ESMTPSA id f19sm234439ljc.55.2021.06.02.22.41.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Jun 2021 22:41:27 -0700 (PDT) Date: Thu, 3 Jun 2021 08:41:21 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Mark Brown , Kees Cook , Andy Shevchenko , Zhang Rui , Guenter Roeck , "agross@kernel.org" , "devicetree@vger.kernel.org" , linux-power , "linux-kernel@vger.kernel.org" , "linux-renesas-soc@vger.kernel.org" , "linux-arm-msm@vger.kernel.org" , "bjorn.andersson@linaro.org" , "lgirdwood@gmail.com" , "robh+dt@kernel.org" Subject: [PATCH RESEND v10 04/11] regulator: add warning flags Message-ID: <9b54aa5589ae4b5945d53d114bac3fae55fa4818.1622628333.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="BXVAT5kNtrzKuDFl" Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org --BXVAT5kNtrzKuDFl Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Add 'warning' level events and error flags to regulator core. Current regulator core notifications are used to inform consumers about errors where HW is misbehaving in such way it is assumed to be broken/unrecoverable. There are PMICs which are designed for system(s) that may have use for regulator indications sent before HW is damaged so that some board/consumer specific recovery-event can be performed while continuing most of the normal operations. Add new WARNING level events and notifications to be used for that purpose. Signed-off-by: Matti Vaittinen --- No changes since RFC-v2 --- include/linux/regulator/consumer.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/c= onsumer.h index 20e84a84fb77..f72ca73631be 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -119,6 +119,16 @@ struct regulator_dev; #define REGULATOR_EVENT_PRE_DISABLE 0x400 #define REGULATOR_EVENT_ABORT_DISABLE 0x800 #define REGULATOR_EVENT_ENABLE 0x1000 +/* + * Following notifications should be emitted only if detected condition + * is such that the HW is likely to still be working but consumers should + * take a recovery action to prevent problems esacalating into errors. + */ +#define REGULATOR_EVENT_UNDER_VOLTAGE_WARN 0x2000 +#define REGULATOR_EVENT_OVER_CURRENT_WARN 0x4000 +#define REGULATOR_EVENT_OVER_VOLTAGE_WARN 0x8000 +#define REGULATOR_EVENT_OVER_TEMP_WARN 0x10000 +#define REGULATOR_EVENT_WARN_MASK 0x1E000 =20 /* * Regulator errors that can be queried using regulator_get_error_flags @@ -138,6 +148,10 @@ struct regulator_dev; #define REGULATOR_ERROR_FAIL BIT(4) #define REGULATOR_ERROR_OVER_TEMP BIT(5) =20 +#define REGULATOR_ERROR_UNDER_VOLTAGE_WARN BIT(6) +#define REGULATOR_ERROR_OVER_CURRENT_WARN BIT(7) +#define REGULATOR_ERROR_OVER_VOLTAGE_WARN BIT(8) +#define REGULATOR_ERROR_OVER_TEMP_WARN BIT(9) =20 /** * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event --=20 2.25.4 --=20 Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ Simon says - in Latin please. ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ Thanks to Simon Glass for the translation =3D]=20 --BXVAT5kNtrzKuDFl Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEIx+f8wZb28fLKEhTeFA3/03aocUFAmC4a4EACgkQeFA3/03a ocWYfQf9Hku6ytfuomxoEv1E19jBT8YO3PIAJK9HFgbfsL+hQwvaqaPyNuvd9pKI zqbingWGVbIexzsP9kz5JI57SHVEn1nB4qI1mUw1128OaH2OEjLyzu4hUpvxkKVq 94LYdT7nBFV+N9+86PATo1mAmrYA0rDUBJKuzNBdIvZTMsZDBQrd+ueXRNhp/HM9 AroZcTyui3z+B3YDMIz78tVpTgcEEmvy14S2/FeYUOCW8hm1xxU09zjaFs55slLn jBQXcvFdfRe0ctA2I4S0Tokqf4dKHqOsg1E5J4eduNnoCEgCpRcpQ3EwoMuV/oXe J0ND7ojtPHRkccQJt3E6iimk35sMZA== =7dIA -----END PGP SIGNATURE----- --BXVAT5kNtrzKuDFl--