From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6BD5E182D8; Sat, 10 Aug 2024 11:34:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723289664; cv=none; b=UUpm1Bjh/w/CWP1Bcl0eqCsbd6m1QlGQcOcen+syQOwECbkSXvFftIK9TYnZzM9gAL5ZpClQy1NskctdrAr4VEh26sdcHfdqgxvLKxSNcEcSOzoC6F5+GegNgp0N1FbIfx+y4tgAbZq3it5Tc2MoJMkI859r29/8iWpmzxktlVM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723289664; c=relaxed/simple; bh=JJ/+mmEM+8xbPzM21IrIBeyxA2AgTYGqFaQ5w0B64fg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=sRMiTwTcf+9rjGjeY2HvVxztiv3+wjQQTZRwwgL4zJr9fpb6WBgk0DipngDstghF45EzS9K6uyjnifqLkhWf2nYeCZ9Q+apS7QQN/yyUC0X25Qh7ema77/+Z2Snzcb6vzMdnS+47Z8UiOr7Lkq6Oyvv4Yu+9sJ7TeCvCfjYKVEg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HhMHYN0u; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HhMHYN0u" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 59A11C32781; Sat, 10 Aug 2024 11:34:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723289663; bh=JJ/+mmEM+8xbPzM21IrIBeyxA2AgTYGqFaQ5w0B64fg=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=HhMHYN0uQ9U9KjtTzSGJCZ40lqRZ27WCmrPA4Co1HHqPI46MoQ2poZ9vaPwCaY3UF pBsHLQCJyog2SqzzrGmxZgB5ZoRWjdqiPMs9SFpZOzkXM2RzHrMo0D0nzdGn9KD3DP ou4Gx5bwFzUDY+ILY1tnJ5iCHeOIVTlPtGcofWKn/YmAUH/fsGyCiqKz8YKFcM8UwA ojy7P7zCDPYE5L2m6I4AqVENJjVibFORZS8BhUACaOJ5T/bhiWR6c4EKv88d0kg0xN sHsM5xkcYat8JjJ75te7UtTSII2dPQ+jM8Si3QKiaZZOvqKaE6qTJHkqsWozB5F3sa sjcL65vpBTZdQ== Message-ID: <1f8905b0-aff6-4932-b936-191aa5529f0e@kernel.org> Date: Sat, 10 Aug 2024 13:34:18 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] pwm: airoha: Add support for EN7581 SoC To: Lorenzo Bianconi , linux-pwm@vger.kernel.org Cc: ukleinek@kernel.org, lorenzo.bianconi83@gmail.com, krzk+dt@kernel.org, robh@kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, upstream@airoha.com, angelogioacchino.delregno@collabora.com, benjamin.larsson@genexis.eu, conor+dt@kernel.org, ansuelsmth@gmail.com References: From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; keydata= xsFNBFVDQq4BEAC6KeLOfFsAvFMBsrCrJ2bCalhPv5+KQF2PS2+iwZI8BpRZoV+Bd5kWvN79 cFgcqTTuNHjAvxtUG8pQgGTHAObYs6xeYJtjUH0ZX6ndJ33FJYf5V3yXqqjcZ30FgHzJCFUu JMp7PSyMPzpUXfU12yfcRYVEMQrmplNZssmYhiTeVicuOOypWugZKVLGNm0IweVCaZ/DJDIH gNbpvVwjcKYrx85m9cBVEBUGaQP6AT7qlVCkrf50v8bofSIyVa2xmubbAwwFA1oxoOusjPIE J3iadrwpFvsZjF5uHAKS+7wHLoW9hVzOnLbX6ajk5Hf8Pb1m+VH/E8bPBNNYKkfTtypTDUCj NYcd27tjnXfG+SDs/EXNUAIRefCyvaRG7oRYF3Ec+2RgQDRnmmjCjoQNbFrJvJkFHlPeHaeS BosGY+XWKydnmsfY7SSnjAzLUGAFhLd/XDVpb1Een2XucPpKvt9ORF+48gy12FA5GduRLhQU vK4tU7ojoem/G23PcowM1CwPurC8sAVsQb9KmwTGh7rVz3ks3w/zfGBy3+WmLg++C2Wct6nM Pd8/6CBVjEWqD06/RjI2AnjIq5fSEH/BIfXXfC68nMp9BZoy3So4ZsbOlBmtAPvMYX6U8VwD TNeBxJu5Ex0Izf1NV9CzC3nNaFUYOY8KfN01X5SExAoVTr09ewARAQABzSVLcnp5c3p0b2Yg S296bG93c2tpIDxrcnprQGtlcm5lbC5vcmc+wsGVBBMBCgA/AhsDBgsJCAcDAgYVCAIJCgsE FgIDAQIeAQIXgBYhBJvQfg4MUfjVlne3VBuTQ307QWKbBQJgPO8PBQkUX63hAAoJEBuTQ307 QWKbBn8P+QFxwl7pDsAKR1InemMAmuykCHl+XgC0LDqrsWhAH5TYeTVXGSyDsuZjHvj+FRP+ gZaEIYSw2Yf0e91U9HXo3RYhEwSmxUQ4Fjhc9qAwGKVPQf6YuQ5yy6pzI8brcKmHHOGrB3tP /MODPt81M1zpograAC2WTDzkICfHKj8LpXp45PylD99J9q0Y+gb04CG5/wXs+1hJy/dz0tYy iua4nCuSRbxnSHKBS5vvjosWWjWQXsRKd+zzXp6kfRHHpzJkhRwF6ArXi4XnQ+REnoTfM5Fk VmVmSQ3yFKKePEzoIriT1b2sXO0g5QXOAvFqB65LZjXG9jGJoVG6ZJrUV1MVK8vamKoVbUEe 0NlLl/tX96HLowHHoKhxEsbFzGzKiFLh7hyboTpy2whdonkDxpnv/H8wE9M3VW/fPgnL2nPe xaBLqyHxy9hA9JrZvxg3IQ61x7rtBWBUQPmEaK0azW+l3ysiNpBhISkZrsW3ZUdknWu87nh6 eTB7mR7xBcVxnomxWwJI4B0wuMwCPdgbV6YDUKCuSgRMUEiVry10xd9KLypR9Vfyn1AhROrq AubRPVeJBf9zR5UW1trJNfwVt3XmbHX50HCcHdEdCKiT9O+FiEcahIaWh9lihvO0ci0TtVGZ MCEtaCE80Q3Ma9RdHYB3uVF930jwquplFLNF+IBCn5JRzsFNBFVDXDQBEADNkrQYSREUL4D3 Gws46JEoZ9HEQOKtkrwjrzlw/tCmqVzERRPvz2Xg8n7+HRCrgqnodIYoUh5WsU84N03KlLue MNsWLJBvBaubYN4JuJIdRr4dS4oyF1/fQAQPHh8Thpiz0SAZFx6iWKB7Qrz3OrGCjTPcW6ei OMheesVS5hxietSmlin+SilmIAPZHx7n242u6kdHOh+/SyLImKn/dh9RzatVpUKbv34eP1wA GldWsRxbf3WP9pFNObSzI/Bo3kA89Xx2rO2roC+Gq4LeHvo7ptzcLcrqaHUAcZ3CgFG88CnA 6z6lBZn0WyewEcPOPdcUB2Q7D/NiUY+HDiV99rAYPJztjeTrBSTnHeSBPb+qn5ZZGQwIdUW9 YegxWKvXXHTwB5eMzo/RB6vffwqcnHDoe0q7VgzRRZJwpi6aMIXLfeWZ5Wrwaw2zldFuO4Dt 91pFzBSOIpeMtfgb/Pfe/a1WJ/GgaIRIBE+NUqckM+3zJHGmVPqJP/h2Iwv6nw8U+7Yyl6gU BLHFTg2hYnLFJI4Xjg+AX1hHFVKmvl3VBHIsBv0oDcsQWXqY+NaFahT0lRPjYtrTa1v3tem/ JoFzZ4B0p27K+qQCF2R96hVvuEyjzBmdq2esyE6zIqftdo4MOJho8uctOiWbwNNq2U9pPWmu 4vXVFBYIGmpyNPYzRm0QPwARAQABwsF8BBgBCgAmAhsMFiEEm9B+DgxR+NWWd7dUG5NDfTtB YpsFAmA872oFCRRflLYACgkQG5NDfTtBYpvScw/9GrqBrVLuJoJ52qBBKUBDo4E+5fU1bjt0 Gv0nh/hNJuecuRY6aemU6HOPNc2t8QHMSvwbSF+Vp9ZkOvrM36yUOufctoqON+wXrliEY0J4 ksR89ZILRRAold9Mh0YDqEJc1HmuxYLJ7lnbLYH1oui8bLbMBM8S2Uo9RKqV2GROLi44enVt vdrDvo+CxKj2K+d4cleCNiz5qbTxPUW/cgkwG0lJc4I4sso7l4XMDKn95c7JtNsuzqKvhEVS oic5by3fbUnuI0cemeizF4QdtX2uQxrP7RwHFBd+YUia7zCcz0//rv6FZmAxWZGy5arNl6Vm lQqNo7/Poh8WWfRS+xegBxc6hBXahpyUKphAKYkah+m+I0QToCfnGKnPqyYIMDEHCS/RfqA5 t8F+O56+oyLBAeWX7XcmyM6TGeVfb+OZVMJnZzK0s2VYAuI0Rl87FBFYgULdgqKV7R7WHzwD uZwJCLykjad45hsWcOGk3OcaAGQS6NDlfhM6O9aYNwGL6tGt/6BkRikNOs7VDEa4/HlbaSJo 7FgndGw1kWmkeL6oQh7wBvYll2buKod4qYntmNKEicoHGU+x91Gcan8mCoqhJkbqrL7+nXG2 5Q/GS5M9RFWS+nYyJh+c3OcfKqVcZQNANItt7+ULzdNJuhvTRRdC3g9hmCEuNSr+CLMdnRBY fv0= In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/08/2024 06:48, Lorenzo Bianconi wrote: > From: Benjamin Larsson > > Introduce driver for PWM module available on EN7581 SoC. > > Signed-off-by: Benjamin Larsson > Co-developed-by: Lorenzo Bianconi > Signed-off-by: Lorenzo Bianconi > --- ... > + > +static void airoha_pwm_config_flash_map(struct airoha_pwm *pc, > + unsigned int hwpwm, int index) > +{ > + u32 addr, mask, val; > + > + if (hwpwm < PWM_NUM_GPIO) { > + addr = REG_GPIO_FLASH_MAP(hwpwm / 8); > + } else { > + addr = REG_SIPO_FLASH_MAP(hwpwm / 8); > + hwpwm -= PWM_NUM_GPIO; > + } > + > + if (index < 0) { > + /* Change of waveform takes effect immediately but This and other comments should be not netdev-style but general Linux style. > + * disabling has some delay so to prevent glitching > + * only the enable bit is touched when disabling > + */ > + airoha_pwm_flash_clear(pc, addr, GPIO_FLASH_EN(hwpwm % 8)); > + return; ... > + > +static const struct of_device_id airoha_pwm_of_match[] = { > + { .compatible = "airoha,en7581-pwm" }, > + { /* sentinel */ } > +}; > +MODULE_DEVICE_TABLE(of, airoha_pwm_of_match); > + > +static struct platform_driver airoha_pwm_driver = { > + .driver = { > + .name = "airoha-pwm", > + .of_match_table = airoha_pwm_of_match, > + }, > + .probe = airoha_pwm_probe, > +}; > +module_platform_driver(airoha_pwm_driver); > + > +MODULE_ALIAS("platform:airoha-pwm"); You should not need MODULE_ALIAS() in normal cases. If you need it, usually it means your device ID table is wrong (e.g. misses either entries or MODULE_DEVICE_TABLE()). MODULE_ALIAS() is not a substitute for incomplete ID table. Especially that it does not match compatible, so you cannot use excuse module autoloading does not work for given OF node... Best regards, Krzysztof