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Wed, 1 Jul 2020 10:20:55 +0200 (CEST) From: =?UTF-8?q?Pali=20Roh=C3=A1r?= To: Thomas Petazzoni , Lorenzo Pieralisi , Andrew Murray , Bjorn Helgaas , =?UTF-8?q?Marek=20Beh=C3=BAn?= , Remi Pommarel , Tomasz Maciej Nowak , Xogium Subject: [PATCH v2] PCI: aardvark: Don't touch PCIe registers if no card connected Date: Wed, 1 Jul 2020 10:20:44 +0200 Message-Id: <20200701082044.4494-1-pali@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200528143141.29956-1-pali@kernel.org> References: <20200528143141.29956-1-pali@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200701_042058_948856_434AD6C5 X-CRM114-Status: GOOD ( 14.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org V2hlbiB0aGVyZSBpcyBubyBQQ0llIGNhcmQgY29ubmVjdGVkIGFuZCBhZHZrX3BjaWVfcmRfY29u ZigpIG9yCmFkdmtfcGNpZV93cl9jb25mKCkgaXMgY2FsbGVkIGZvciBQQ0kgYnVzIHdoaWNoIGRv ZXNuJ3QgYmVsb25nIHRvIGVtdWxhdGVkCnJvb3QgYnJpZGdlLCB0aGUgYWFyZHZhcmsgZHJpdmVy IHRocm93cyB0aGUgZm9sbG93aW5nIGVycm9yIG1lc3NhZ2U6CgogIGFkdmstcGNpZSBkMDA3MDAw MC5wY2llOiBjb25maWcgcmVhZC93cml0ZSB0aW1lZCBvdXQKCk9idmlvdXNseSBhY2Nlc3Npbmcg UENJZSByZWdpc3RlcnMgb2YgZGlzY29ubmVjdGVkIGNhcmQgaXMgbm90IHBvc3NpYmxlLgoKRXh0 ZW5kIGNoZWNrIGluIGFkdmtfcGNpZV92YWxpZF9kZXZpY2UoKSBmdW5jdGlvbiBmb3IgdmFsaWRh dGluZwphdmFpbGFiaWxpdHkgb2YgUENJZSBidXMuIElmIFBDSWUgbGluayBpcyBkb3duLCB0aGVu IHRoZSBkZXZpY2UgaXMgbWFya2VkCmFzIE5vdCBGb3VuZCBhbmQgdGhlIGRyaXZlciBkb2VzIG5v dCB0cnkgdG8gYWNjZXNzIHRoZXNlIHJlZ2lzdGVycy4KClRoaXMgaXMganVzdCBhbiBvcHRpbWl6 YXRpb24gdG8gcHJldmVudCBhY2Nlc3NpbmcgUENJZSByZWdpc3RlcnMgd2hlbiBjYXJkCmlzIGRp c2Nvbm5lY3RlZC4gVHJ5aW5nIHRvIGFjY2VzcyBQQ0llIHJlZ2lzdGVycyBvZiBkaXNjb25uZWN0 ZWQgY2FyZCBkb2VzCm5vdCBjYXVzZSBhbnkgY3Jhc2gsIGtlcm5lbCBqdXN0IG5lZWRzIHRvIHdh aXQgZm9yIGEgdGltZW91dC4gU28gaWYgY2FyZApkaXNhcHBlYXIgaW1tZWRpYXRlbHkgYWZ0ZXIg Y2hlY2tpbmcgZm9yIFBDSWUgbGluayAoYmVmb3JlIGFjY2Vzc2luZyBQQ0llCnJlZ2lzdGVycyks IGl0IGRvZXMgbm90IGNhdXNlIGFueSBwcm9ibGVtcy4KClNpZ25lZC1vZmYtYnk6IFBhbGkgUm9o w6FyIDxwYWxpQGtlcm5lbC5vcmc+CgotLS0KQ2hhbmdlcyBpbiBWMjoKKiBVcGRhdGUgY29tbWl0 IG1lc3NhZ2UsIG1lbnRpb24gdGhhdCB0aGlzIGlzIG9wdGltaXphdGlvbgotLS0KIGRyaXZlcnMv cGNpL2NvbnRyb2xsZXIvcGNpLWFhcmR2YXJrLmMgfCAzICsrKwogMSBmaWxlIGNoYW5nZWQsIDMg aW5zZXJ0aW9ucygrKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvcGNpL2NvbnRyb2xsZXIvcGNpLWFh cmR2YXJrLmMgYi9kcml2ZXJzL3BjaS9jb250cm9sbGVyL3BjaS1hYXJkdmFyay5jCmluZGV4IDkw ZmYyOTFjMjRmMC4uNTNhNGNmZDdkMzc3IDEwMDY0NAotLS0gYS9kcml2ZXJzL3BjaS9jb250cm9s bGVyL3BjaS1hYXJkdmFyay5jCisrKyBiL2RyaXZlcnMvcGNpL2NvbnRyb2xsZXIvcGNpLWFhcmR2 YXJrLmMKQEAgLTY0NCw2ICs2NDQsOSBAQCBzdGF0aWMgYm9vbCBhZHZrX3BjaWVfdmFsaWRfZGV2 aWNlKHN0cnVjdCBhZHZrX3BjaWUgKnBjaWUsIHN0cnVjdCBwY2lfYnVzICpidXMsCiAJaWYgKChi dXMtPm51bWJlciA9PSBwY2llLT5yb290X2J1c19ucikgJiYgUENJX1NMT1QoZGV2Zm4pICE9IDAp CiAJCXJldHVybiBmYWxzZTsKIAorCWlmIChidXMtPm51bWJlciAhPSBwY2llLT5yb290X2J1c19u ciAmJiAhYWR2a19wY2llX2xpbmtfdXAocGNpZSkpCisJCXJldHVybiBmYWxzZTsKKwogCXJldHVy biB0cnVlOwogfQogCi0tIAoyLjIwLjEKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0t a2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFp bG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==